The invention relates to the field of surgical medical instruments, in particular to an intra-operative dissector with a lighting function. The intra-operative dissector is characterized by comprising a handle (3), an electrode (2), a power plug, a wire, a lighting device connector (8) and a control panel (4). The intra-operative dissector has the advantages that the position of the electrode can be adjusted at will; a slot is formed, so that the electrode can be rapidly replaced with electrodes with different purposes during an operation; the lighting device connector is arranged, different lighting devices can be replaced during use, a shadowless effect is achieved, an electrode cutting portion is lightened all the time, and doctors can conveniently observe the situation. A lighting device is not provided with a battery, so that contamination of the battery to the intra-operative dissector with the lighting function can be effectively avoided, and electromagnetic interference of the lighting device connector on the control panel can be eliminated; a smoke guide tube is arranged, and multiple functions of exhausting smoke, extracting exudate, introducing argon and introducing cleaning fluid can be achieved through external connection with different kinds of equipment.