1）Basic rules I:
1.1 The badminton court shall be a rectangle marked out with lines 20mm wide as shown in diagram.
1.2 The lines marking out the court shall be easily distinguishable and preferably be white or yellow.
1.3.1 The 4 signs ,530mm and 990mm from a side line ,marking the area (size:40mm×40mm) of testing correct speed of shuttles shall be marked inside the side line of singles service court.
1.3.2 The width of these signs is 40mm.It means that these signs are 530 mm to 570 mm and 950 mm to 990 mm from a side line.
1.4 All the lines shall form part of the area which they define.
1.5 If the area is not enough to mark out a doubles court, it is acceptable to mark out a singles court with the long service line as the back boundary line and the post or the strips placed in the side line (Rule 2.2).
2. Net post
2.1The posts shall be 1.55 meters in height from the surface of the court and shall remain vertical when the net is strained as described as Rule 3. The posts shall be placed on the doubles side lines as shown in diagram A.
2.2Where it is not practicable to have posts on the sidelines, some method shall be used to indicate the position of the sidelines where they pass under the net, e.g. by the use of thin posts or strips of material 40 mm wide, fixed to the side lines and rising vertically to the net cord.
2.3The posts shall be placed on the doubles side lines irrespective of whether singles or doubles is being played.
3. The net
3.1The net shall be made of fine cord of dark color and even thickness with a mesh from l5 mm to 20 mm.
3.2 The net shall be 760 mm in depth.
3.3The top of the net shall be edged with a 75 mm white tape doubled over a cord or cable running through the tape. This tape shall rest upon the cord or cable.
3.4 The cord or cable shall be stretched firmly, flush with the top of the posts.
3.5 The top of the net from the surface of the court shall be 1.524 meters at the centre of the court and 1.55 metes over the side lines for doubles.
3.6 There shall be no gaps between the ends of the net and the posts.
The shuttle shall be made of natural and / or synthetic materials. From whatever material the shuttle is made, the flight characteristics generally shall be similar to those produced by a natural feathered shuttle with a cork base covered by a thin layer of leather.
4.1 Feathered shuttle
4.1.1The shuttle shall have 16 feathers fixed in the base.
4.1.2The feathers shall have a uniform length from 64 mm to 70 mm when measured from tip of the feather to top of the base.
4.1.3The tips of the feathers shall lie on a circle with a diameter from 58 mm to 68 mm.
4.1.4The feathers shall be fastened firmly with thread or other suitable material.
4.1.5The base shall be 25 mm to 28 mm in diameter and rounded on the bottom.
4.2The shuttle shall weigh from 4.74 g to 5.50 g.
4.3.1The skirt, or simulation of feathers in synthetic materials, shall replace natural feathers.
4.3.2 The base shall be as described as the Rule 4.1.5.
4.3.3Measurements and weight shall be as the rule 4.1.2、4.1.3 and 4.2.However, because of the difference in the specific gravity and other properties of synthetic materials in comparison with feathers, a error within 10 % shall be acceptable.
4.4Testing a shuttle for speed
4.4.1To test a shuttle, a player shall use a full underhand stroke which makes contact with the shuttle over the back boundary line. The shuttle shall be hit at an upward angle and in a direction parallel to the side lines.
4.4.2A shuttle of correct speed will land not less than 530 mm and not more than 990 mm short of the other back boundary line.
4.5Subject to there being no variation in the general design, speed and flight of the shuttle, modifications in the above specifications may be made with the approval of the Member Association concerned.
4.5.1 The standard shuttle is unsuitable due to special conditions such as altitude, climates.
4.5.2 Modification is a must for furthering the game under special circumstances.
5.1The racket consists of major parts described from Rule5.1.1to Rule5.1.7 and the specification of each part is illustrated in Diagram E.
5.1.1The racket shall be a frame consisting of the handle, the stringed area, the head, the shaft and the throat.
5.1.2 The handle is the part of the racket intended to be gripped by a player.
5.1.3The stringed area is the part of the racket with which it is intended that a player hits the shuttle.
5.1.4The head bounds the stringed area
5.1.5 The shaft connects the handle to the head (subject to the Rule 5.1.6)
5.1.6 The throat (if present) connects the shaft to the head.
5.1.7The racket frame consists of the head, the throat and the shaft and the handle.
5.2The racket shall be a frame not exceeding 680 mm in overall length and 230 mm in overall width.
5.3.1 The stringed area shall be flat and consist of a pattern of crossed strings either alternately interlaced or bonded where they cross. The stringing pattern shall be generally uniform and, in particular, not less dense in the centre than in any other area.
5.3.2The stringed area shall not exceed 280 mm in overall length and 220 mm in overall width.
5.3.3 However, the strings may extend into an area which otherwise would be the throat, provided that the width of the extended stringed area does not exceed 35 mm and the overall length of the stringed area does not then exceed 330 mm.
5.4.1The racket shall be free of attached objects and protrusions, other than those used solely and specifically to limit or prevent wear and tear, or vibration, or to distribute weight, or to secure the handle by cord to the player’s hand, and which are reasonable in size and placement for such purposes.
5.4.2The racket shall be free of any device that makes it possible for a player to change materially the shape of the racket.
The Badminton World Federation shall rule on any question of whether any racket, shuttle or equipment or any prototype used in the playing of Badminton complies with the specifications. Such ruling may be undertaken on the Federation’s initiative or on application by any party with interests, including any player, technical official, equipment manufacturer, Member Association and member thereof.
2).Basic rule II:
7. The Player
7.1 “Player”: Any person playing Badminton.
7.2Doubles: A match where there are two players on each of the opposing sides. Singles: A match where there is one player on each of the opposing sides.
7.3 The side having the right to serve is called serving side and the side opposing the serving side is receiving side.
8.1 Before play commences, a toss shall be conducted and the side winning the toss shall exercise the choice in either Rule 8.1.1or Rule 8.1.2.
8.1.1 To serve or receive first;
8.1.2 To start play at one end of the court or the other.
8.2 The side losing the toss shall then exercise the remaining choice.
9. Change of ends
9.1 Players shall change ends;
9.1.1 at the end of the first game;
9.1.2 before the third game;
9.1.3 If a third game or one game match was to be played, players shall change ends when the leading score reaches 6 in a game of 11 points or 8 in a game of 15 points.
9.2 If the ends are not changed as indicated in the rule10.1, it shall be done so as soon as the mistake is discovered and when the shuttle is not in play. The existing score shall stand.
10.1 A correct service
10.1.1 In a correct service, neither side shall cause undue delay to the delivery of the service once the server and the receiver are ready for the service.
10.1.2 The server and the receiver shall stand within diagonally opposite service courts without touching the boundary lines of these service courts; both feet of the server and the receiver shall remain in contact with the surface of the court until the service is delivered (Rule 11.4).
10.1.3 The server’s racket shall initially hit the base of the shuttle and meanwhile the whole shuttle shall be below the server’s waist at the instant of being hit by the server’s racket.
10.1.4 At the instant of hitting the shuttle, the shaft of the server’s racket shall be pointing in a downward direction so that the racket head is below the server’s hand which is griping the racket.
10.1.5 The movement of the server’s racket shall continue forwards from the start of the service (Rule11.2) until the service is delivered.
10.1.6 The flight of the shuttle shall be upwards from the server’s racket to pass over the net so that, if not intercepted, it shall land in the receiver’s service court.
10.2 Once the players are ready for the service, the first forward movement of the server’s racket head shall be the start of the service.
10.3The server shall not serve before the receiver is ready. However, the receiver shall be considered to have been ready if a return of the service is attempted.
10.4 Once started (Rule11.2), the service is delivered when the shuttle is hit by the server’s racket or, in attempting to serve, the server misses the shuttle.
10.5 In doubles, during the delivery of service, the partners may take up any positions within their respective courts, which do not unsight the opposing server or receiver.
11.1 The players shall serve from, and receive in, their respective right service courts when the server has not scored or has scored an even number of points in that game.
11.2The players shall serve from, and receive in, their respective left service courts when the server has scored an odd number of points in that game.
11.3 If there is a setting, the position of a server shall be fixed on the basis of points scored in the game as mentioned in Rule 12.1 and12.2.
11.4 Once started, the shuttle may be hit by the server and the receiver alternately, until a “fault” is made or the shuttle ceases to be in play.
11.5.1 The server shall score a point and serve again from the alternate service court when the opponent makes a “fault” or the shuttle ceases to be in play because it touches the surface of the opponent's side of court
11.5.2 No points will be scored when the server makes a “fault” or the shuttle ceases to be in play because it touches the surface of the server’s side of court. The serving right will then be transferred to the opponent.
12.1 At the start of the game, and each time a side gains the right to serve, the service shall be delivered from the right service court.
12.2 Only the receiver standing diagonally opposite of the server shall return the service. Should the receiver's partner touched or hit the shuttle, it shall be a “fault” and the server scores a point.
12.3.1After the service is returned, the shuttle may be hit by either player of the serving side and either player of the receiving side alternately until the shuttle ceases to be in play.
12.3.2After the service is returned, in a rally, players can receive from any position on player’s side of the net.
12.4.1 When the receiver makes a “fault” or the shuttle ceases to be in play because it touches the surface of the receiver’s side of court, the serving side shall score a point and the server shall then serve again.
12.4.2When the server makes a “fault” or the shuttle ceases to be in play because it touches the surface of the server’s side of court, the server shall lose the right to serve and both sides score no point..
12.5.1 At the beginning of a game, a player of the serving side shall serve from or receive in the right service court when the serving side has not scored or has scored an even number of points in that game. A player of the serving side shall serve from or receive in the left service court when the serving side has scored an odd number of points in that game.
12.5.2 A player of the receiving side shall receive in or serve from the right service court when the receiving side has not scored or has scored an even number of points in that game. A player of the receiving side shall receive in or serve from the left service court when the receiving side has scored an odd number of points in that game.
13.5.3The reverse pattern shall apply to the receiver’s and the server’s partners.
12.5.4 If there is a setting, the position of the serving side and the receiving side shall be fixed on the basis of points scored in the game as described as Rule 13.5.1 and 13.5.3.
12.6 The service shall be delivered from the two sides of service court alternately (except as provided in Rule14and 16).
12.7In any game, the right to serve passes consecutively from the initial server to the initial receiver, then to that initial's receiver's partner, then to the opponent who is due to serve from the right service court, then to that player's partner, and so on.
12.8No player shall serve or receive out of turn, or receive two consecutive services in the same game, except as provided in Rule 14 and 16.
12.9 Either player of the winning side may serve first in the next game, and either player of the losing side may receive first in the next game.
13. Service court errors
13.1A service court error has been made when a player:
13.1.1 Has served or received out of turn;
13.1.2 Has served from the wrong service court;
13.1.3 Has received from the wrong receive court after the delivery of service.
13.2 Service court errors；
13.3If there is a “let” because of a service court error, the rally is replayed with the error corrected.
13.4If a service court error is not to be corrected, play in that game shall proceed without changing the player's new service courts and order of play.
“Let” shall be called by the umpire to halt play.
14.1 It shall be a “let” if any unforeseen or accidental situation has occurred.
14.2It shall be a “let” if the shuttle is caught on the net and remains suspended on its top or after passing over the net is caught in the net after the service is returned.
14.3It shall be a “let” If the receiver and server are both faulted at the same time during service.
14.4It shall be a “let” if the server serves before the receiver is ready.
14.5 It shall be a “let” if the shuttle disintegrates and the base completely separates from the rest of the shuttle during the play.
14.6 It shall be a “let” if a line judge is unsighted and the umpire is unable to make a decision.
14.7When a “let” occurs, play since the last service shall not count and the player who served last shall serve again.
14. Shuttle not in play
A shuttle is not in play when:
15.1 It strikes the net and remains attached there or suspended on top.
15.2 It strikes the net or post and starts to fall towards the surface of the court on the striker’s side of the net;
15.3 It hits the surface of the court;
15.4 A “fault” or a “let” has occurred.
3）Basic rules III:
16. Scoring system
16.1 A match shall consist of the best of three games, unless otherwise arranged.
16.2 Only the serving side can score points.
16.3In Doubles and Men's Singles (except as provided in Rule 9.6), the first side to score 15 points wins the game.
16.4 In Women's Singles (except as provided in Rule 9.6), the first side to score 11 points wins the game.
16.5.1 If the score becomes 13-all or 14-all (9-all or10-all in Women's Singles), the side which first scores 13(9) or14 (10) shall exercise the choice to continue the game or to “set” the game.
16.5.2 The choice shall be made when the required score firstly emerges before the next delivery of service.
16.5.3If the score becomes 13-all (9-all in Women's Singles), the side first reaching 13(9) chooses to continue the game.
16.6The score shall start from 0-0 in setting and the side first scores a point shall win the game.
16.6.1If the score becomes 13-all, setting 5 points;
16.6.2If the score becomes 14-all, setting 3 points;
16.6.3If the score becomes 9-all, setting 3 points;
16.6.4 If the score becomes 10-all, setting 2 points.
16.7 The side winning a game serves first in the next game.