Surgical instrument and surgical robot

The invention provides a surgical instrument and a surgical robotic.The surgical instrument comprises a forceps body and an opening and closing transmission mechanism, the forceps body comprises a first clamp and a second clamp which can rotate mutually, the opening and closing transmission mechanism comprises a base rod and an outer tube, and the base rod is connected with at least one of the first clamp and the second clamp; the outer pipe is sleeved outside the base rod and can move relative to the base rod; when the outer pipe moves, the outer pipe has a first state that the outer pipe is arranged outside at least part of the first clamp and at least part of the second clamp in a sleeving mode and a second state that the outer pipe is separated from the first clamp and the second clamp, and when the outer pipe is in the first state, the first clamp and the second clamp rotate to be closed, and when the outer pipe is in the second state, the first clamp and the second clamp rotate to be closed. And the fir