The invention relates to a power equipment power distribution box convenient to maintain and repair. Clamping devices are installed at a peripheral side surface in a power distribution box; a power distribution box cover is installed on the power distribution box through the clamping devices; slide groove installation holes are formed in installation blocks; slide groove blocks are provided with installation shafts; the slide groove blocks are installed in installation holes through the installation shafts; the installation blocks are provided with return springs; the return springs are arranged just below the slide groove blocks; dovetail slide grooves are machined in the slide groove blocks; a tightening hole is machined at one side of each dovetail slide groove; one side of each wedge-shaped clamping block is provided with a dovetail slide rail; the top end of each wedge-shaped clamping block is provided with a clamping boss; and the wedge-shaped clamping blocks are installed in the dovetail slide grooves in the slide groove blocks through the dovetail slide rails. According to the power equipment power distribution box convenient to maintain and repair of the invention, the power distribution box cover is installed on the power distribution box through the clamping devices; square clamping holes in the distribution box cover are clamped to the clamping bosses, and therefore, the power equipment power distribution box has the advantages of convenient disassembly and maintenance, scientific and reasonable design, simple structure, convenient use and the like.