The invention relates to a detecting cart of iron core fault of a handhold type generator. The detecting cart is formed by improving on the basis of the prior art. The main improving point of the detecting cart of the iron core fault of the handhold type generator is as below: (1) a handle and wheels are added; (2) both sides of a chassis are symmetrically equipped with a pair of frame width adjusting rods; the frame width adjusting rods are respectively inserted to an insert hole of a fixing cross rod of a corresponding detecting coil and fixed by a screw; (3) magnets are respectively inlaid on the bottom face of the chassis and the bottom faces of a pair of detecting fixing cross rods. The detecting cart of the iron core fault of the handhold type generator has the beneficial effects of being convenient to use and capable of improving the detection accuracy and detection speed.