The invention relates to the technical field of power transformation lifting devices, in particular to a minitype crawler crane for power transformation inspection and repair. The minitype crawler crane for transformation inspection and repair comprises a chassis crane system and a lifting device system which is arranged on the chassis crane system. The chassis crane system comprises a steel structure crane frame, a power device, a supporting leg device, a rotation device and a walking device, wherein the power device, the supporting leg device, the rotation device and the walking device are arranged on the steel structure crane frame. The power device comprises a motor and a gear pump, and the motor is installed on the front of the steel structure crane frame and is connected with the gear pump. The lifting device system comprises a lower arm structure and an upper arm structure, wherein the lower arm structure is arranged on the chassis crane system, and the upper arm structure is connected with the lower arm structure and is of a hydraulic type or electric type multisection folded structure. By the application of the novel equipment, the work efficiency and construction safety of the transformation construction are improved, and the contradiction between construction and maintenance of electric power facilities and safe and reliable power supply of a system is effectively solved.