The invention discloses a device for sports martial arts single-foot balance force training in the field of martial arts training equipment. The device comprises a rectangular worktable, supporting legs are arranged at the periphery of the bottom of the worktable, a rectangular groove is formed in the middle of the worktable, the width of the groove is the same as that of the foot soles of the human body, and the depth of the groove is the same as the height of the ankles of the human body; the groove is internally provided with four circular air cushions filled with air, the spacing between any two air cushions is 20-30 cm, transversely-placed covering lugs are arranged at the two radial sides of each air cushion, the covering lugs correspond to the air cushions one to one, and each covering lug is communicated with the corresponding air cushion. When a user is supported on one foot after jumping exercise, direct jumping is conducted, according to foot falling rules of jump kicking, when the user falls on the ground, the body is supported with one foot, when the foot is in contact with the air cushions, the heel of the user is stressed to be lifted, then only the foot sole is in contact with the groove, after the air cushions are stressed, the air is squeezed into the covering lugs, and after the covering lugs are inflated and expanded, the ankle of the user is clamped to be prevented from being injured.