PROBLEM TO BE SOLVED: To provide a power source cord support of structure easy to attach/detach a power source cord. SOLUTION: This power source cord support 1 is structured by connecting an annular frame 5 holding a power source cord 3 in a frame-inside space to a hook body 6 hooked on a working pant 19 through a connector 7. The annular frame 5 is provided with a split part to be widely opened by elasticity so that the power source cord 3b can be put into/out of the frame-inside space, and the inner surfaces of a pair of ends forming the split part are respectively formed with an inside guide part for leading the power source cord inside the frame-inside space to the split part along the ends, and on the other hand, the outer surfaces of the pair of ends are respectively formed with an outside guide part 12 for leading the power source cord from the outside of the annular frame to the split part. An opposite side end of the split part is provided with a pedestal part 13 formed wider as it goes away from the annular frame 5 and formed into a trapezoidal shape to have a pedestal bottom surface curved like an arch. COPYRIGHT: (C)2011,JPO&INPIT