The utility model relates to a robot of crawling based on reflection of light piece leads. Should crawl the robot includes firstly, the unilateral mechanism of second, both ends are respectively withfirst, the coupling mechanism that the unilateral mechanism of second connects, and guiding mechanism, it is first, the unilateral mechanism of second can adsorb on stator core or rotor core, and canmove on stator core or rotor core, guiding mechanism is including locating the reflection of light piece on the slot wedge, locate first probe and second probe on the coupling mechanism, it is first,second probe is arranged along first direction to second unilateral mechanism, and it is first, the front projection shadow of second probe on reflection of light piece is located reflection of lightpiece, first probe includes first illuminating part and first light receiving portion, the second probe is including second illuminating part and second light receiving portion. It examines and repairand test with the rotor subassembly stator module, ability labour saving and time saving to adopt the aforesaid to creep the robot. And can move the route roughly for straight path so that creep therobot through setting up guiding mechanism.