The invention discloses a clamping device for air conditioner production equipment. The clamping device comprises a sliding rail; the two sides of the sliding rail are fixedly connected with supporting plates correspondingly; controllers are fixedly connected to the sides, away from the sliding rail, of the supporting plates; the top of the sliding rail is fixedly connected with a box body; a motor is fixedly connected with the position, located in an inner cavity of the box body, at the top of the sliding rail; a rotating shaft of the motor is sleeved with a first bevel gear; a first thread rod is movably connected between the two supporting plates; and the ends, away from the supporting plates, of the first thread rod penetrate through the box body and extend to the inner cavity of the box body. According to the clamping device for the air conditioner production equipment, the motor, the first bevel gear and a second bevel gear are matched to enable the first thread rod to rotate so that a thread sleeve can transversely move, a vertical rod and a fixed plate are conveniently driven to transversely move, thus air conditioner cabinet bodies with different sizes can be clamped, operation is convenient, the applicability of the air conditioner cabinet body clamping device is improved, and using of a user is more convenient.