The invention provides a soft start cabinet convenient to maintain, which comprises a cabinet body, a manipulator, a manipulator base, a top plate, an upper-layer substrate, and a lower-layer substrate, wherein the cabinet body is composed of a rear bottom plate, a lower bottom plate and a panel; the cabinet body is provided with the top plate; the cabinet body is internally provided with the upper-layer substrate and the lower-layer substrate which are detachable; the lower-layer substrate and the rear bottom plate are in rotating connection; and the panel is provided with the manipulator base for mounting the manipulator. Problems that the soft start cabinet has a complicated structure, the process is tedious, and disassembly is difficult in the case of maintenance are solved; due to the turning-type upper-layer substrate, the problem that the circuit board on the lower-layer substrate can be checked only when the upper-layer substrate is disassembled completely can be solved; the soft start cabinet is environmental-friendly as a non-welding process is adopted, the soft start cabinet can be directly hung on the mounting plate, and the assembly cost and the mounting cost are reduced; and the soft start cabinet can be assembled better and more quickly.