Hanging type cable tunnel inspection robot

The invention discloses a hanging type cable tunnel inspection robot which can advance along a cable tunnel and reliably inspect the internal condition of the cable tunnel. The robot comprises a fixing assembly, a charging assembly and a host assembly. The fixing assembly comprises a fixing rod, the top end of the fixing rod is fixedly installed on the top face of the tunnel, and a steel wire ropeextending along the tunnel is fixed to the bottom end of the fixing rod. The charging assembly is fixedly installed at one end of an access hole of a tunnel. The charging assembly comprises a hangingpipe, a charging seat is arranged at the bottom of the hanging pipe, and a null line terminal and a live line terminal are symmetrically arranged on two sides of one side of the charging seat facingthe host assembly; the host assembly comprises a host, and a rear panel of the host is provided with a zero line charging panel and a live line charging panel which are used for charging the host assembly after being in contact