The invention belongs to the field of medical appliances and in particular discloses a confocal microscope and rigid electronic arthroscope integrated system. The system comprises a rigid electronic arthroscope, a camera mainframe, a light source mainframe and related monitors, wherein the rigid electronic arthroscope is at least provided with a straight appliance channel; a rigid endoscope end is provided with a confocal microscope, confocal laser heads, a lens of an endoscopic electro optical system, a lightguide fiber and an appliance channel exit; and the rigid electronic arthroscope is designed into the integrated confocal microscope rigid electronic arthroscope. The system introduces the advanced confocal laser scanning microscopy into the diagnosis in orthopaedic surgery and integrates the confocal microscope and an electron optical system. When the endoscope enters into the wounded parts, through interaction between the blue laser beams of 488nm sent by the confocal micro laser heads at the endoscope end and the fluorescein sodium, the doctors can monitor the micro pathological changes of the wounded parts via the confocal microscope monitors and carry out real-time biopsyand treatment. The system can solve the problem caused by biopsy, introduce diagnosis and the knowledge of the joints to a microworld and provide a powerful diagnostic tool for diagnosing and knowingthe joints.