Roof cable bridge support structure with waterproof performance

The utility model provides a roof cable bridge support structure with waterproof performance, which comprises a bridge and supporting bodies, and the supporting bodies are arranged on a roof along the laying direction of the bridge. The supporting body comprises a plurality of concrete buttresses connected with a steel bar layer of the roof in an embedded mode and a profile steel support connected to the concrete buttresses. A secondary pouring cavity is reserved in the top of the concrete buttress, a connecting plate fixedly connected with the concrete buttress is arranged in the secondary pouring cavity, and the profile steel support is fixedly connected to the connecting plate. The profile steel support supports the bottom of the bridge, and the top of the bridge is connected with an arc-shaped cover plate in a buckled mode. According to the description, the concrete buttress and the roof are integrally poured in an embedded mode, so that the phenomenon of water leakage of the roof is effectively prevented