The size of the mahjong table varies with different regions, uses and personal preferences. Generally speaking, the standard size of the mahjong table ranges from 80cm×80cm to 120cm× 120cm, and the height is about 70cm. In Japan, the sizes of mahjong tables usually range from 88cm×88cm to 9 1cm×9 1cm, while in China, the sizes are more diverse, ranging from 90cm×90cm to 100cm× 100cm. Automatic mahjong table, the net size of 36 desktop is 8 1.5cm×8 1.5cm, and it is 96cm×96cm after adding the outer frame, which is suitable for southerners or families with small rooms. 40 The net size of the desktop is 87.5cm×87.5cm, and after adding the outer frame, it is 102cm× 102cm, which is more suitable for northerners or families and entertainment places with larger rooms. When choosing a mahjong table, besides the size, we should also consider the material, stability and appearance to ensure that it matches the size and layout of the room, thus providing a comfortable entertainment environment.