BIPV photovoltaic roof waterproof structure

The utility model relates to a BIPV (building integrated photovoltaics) photovoltaic roof waterproof structure, which comprises a support, two vertical support plates arranged in parallel, and horizontal support plates symmetrically arranged on the two vertical support plates; the connecting piece is arranged on the horizontal supporting plate; the auxiliary supporting piece is used for conducting auxiliary supporting on the connecting piece, and the auxiliary supporting piece comprises a first auxiliary supporting piece body and a second auxiliary supporting piece body; the waterproof parts comprise the first waterproof part and the second waterproof part, the first waterproof part is used for being connected with the first auxiliary supporting part, the second waterproof part is used for being connected with the second auxiliary supporting part, each of the first waterproof part and the second waterproof part comprises an arc-shaped waterproof top, and water falling onto the waterproof tops slides down alon