The invention relates to an indoor anti-explosion cabinet which comprises an outer cabinet body, a middle cabinet body, an inner cabinet body and an anti-explosion liner, wherein the anti-explosion liner is arranged in the inner cabinet body, the inner cabinet body is arranged in the middle cabinet body, the middle cabinet body is arranged in the outer cabinet body, and a cover body is arranged at the upper end of the inner cabinet body. The indoor anti-explosion cabinet has the advantages that most of explosive shock waves are damped and explosion fragments are blocked effectively; due to the adoption of non-metal materials, the risk of shrapnel generation is avoided and safety performance is high; the cabinet is light and can be dragged easily, and the mass of the cabinet is only half that of a metal anti-explosion container on the premise that the protection equivalent weights are equal; the design is ingenious, the inner cabinet body, the middle cabinet body and the outer cabinet body can be assembled and disassembled fast in a pushing and pulling mode, and all-dimensional protection is achieved; the cabinet is well hidden to perform the anti-explosion function and is disguised to be office furniture after being decorated.