The invention relates to a numerical-control detection device for bearing-keeping-device rivet separating force. The numerical-control detection device comprises a base, a lifting mechanism, an upper mold pressing piece, a lower mold pressing piece, a rotating mechanism and a torque detection mechanism. The lifting mechanism is vertically installed on the base, the upper mold pressing piece and the lower mold pressing piece are sequentially installed on the lifting mechanism, a lower pressing mold is arranged on the lower mold pressing piece, and the lifting mechanism drives the lower pressing mold to vertically move; the torque detection mechanism comprises a torque measuring instrument and a measuring bar, a pressure measuring bar is installed at the tail end of the measuring bar, an upper pressing mold corresponding to the lower pressing mold is arranged on the lower surface of the upper mold pressing piece, and a plurality of positioning grooves for positioning the pressure measuring bar are formed in the upper pressing mold, and correspond to rivets on a detected keeping device placed on the lower pressing mold one by one. According to the numerical-control detection device, the pressure measuring bar on the torque detection mechanism is matched with the lifting mechanism, the moment separating force, in the static state, of a riveting part of the detected keeping device is detected, the lower pressing mold is driven by the rotating mechanism to rotate, and the detection accuracy and the detection efficiency are improved.