The invention discloses a mold bar push-out mechanism in a capsule production system, and belongs to the technical field of capsule production lines. The mechanism is installed on a push-out beam of a glue dipping machine and comprises a push-out motor, a transmission device, a driving push-out shaft, a driven push-out shaft, two push-out arms and overload protecting devices, wherein both the driving push-out shaft and the driven push-out shaft are installed on the push-out beam, one end of the driving push-out shaft and one end of the driven push-out shaft stretch out of the push-out beam, half teeth meshed to one anther are respectively installed at the end of the driving push-out shaft stretching out of the push-out beam and the end of the driven push-out shaft stretching out of the push-out beam, the two push-out arms are installed on the driving push-out shaft and the driven push-out shaft respectively, the overload protecting devices are installed on the end portion, where one push-out arm is installed, of the driving push-out shaft and the end portion, where the other push-out arm is installed, of the driven push-out shaft, and the other end of the driving push-out shaft stretches out of the push-out beam and is connected with the push-out motor through the transmission device. Through the mechanism, it can be guaranteed that the system is controlled to stop when faults happen. When the faults happen, steel balls roll out of overload disks so that the overload disks can drive the push-out arms to have displacement, real-time detection can be performed through a proximity switch, and therefore the mechanism is prevented from being damaged when the faults happen.