Device capable of automatically keeping correct-position imaging during rotating image pickup of operation endoscope

The invention belongs to the field of medical treatment and relates to a surgical diagnosis and treatment device, in particular to a device capable of automatically keeping correct-position imaging during rotating image pickup of an operation endoscope. The device solves the problem that when the existing operation endoscope is used, operators need to distinguish the correct position of an image in a displayer according to the instant rotating angle of a lens, and accordingly, the endoscopic operations which are already complicated are more difficult. The technical scheme is that an endoscope optical lens is integrated with a rotating position sensor which is connected with a microprocessor for reading a rotating position signal and giving out an instruction to a stepping motor through a lead, the microprocessor is connected with the stepping motor through a lead, and a driving gear connected with an output shaft of the stepping motor is meshed with a driven gear on an optoelectronic signal sensor which is co