The invention relates to a disconnector protection assembly, and provides a disconnector protection assembly which is simple in structure, convenient to process and high in safety. The disconnector protection assembly sequentially comprises a cover body which is vertically arranged and a pipe body which is horizontally arranged; the cover body is provided with a central hole and is a stepped cylinder with a larger upper part and a smaller lower part; the cover body is provided with a first branch body and a second branch body, and the outer side of each of the first branch body and the secondbranch body is provided with a first connecting edge; the pipe body is provided with a first branch pipe and a second branch pipe, and the top of each of the first branch pipe and the second branch pipe is provided with a second connecting edge; the first branch pipe and the first branch body are integrally molded, and the second branch pipe and the second branch body are integrally molded; serrated faces are arranged between the first connecting edges which are oppositely arranged, serrated faces are arranged between the second connecting edges which are oppositely arranged, and the serratedfaces protrude from the surfaces of the first connecting edges and the second connecting edges; a sealing rubber strip is arranged between the first connecting edges which are oppositely arranged, a sealing rubber strip is arranged between the second connecting edges which are oppositely arranged, and the serrated faces are arranged at one side or two sides of the corresponding sealing rubber strip. The disconnector protection assembly is convenient to install and process, and is safe and reliable.