The invention discloses a bridge cable protection board and a manufacturing method thereof. The bridge cable protection board comprises an antistatic layer, a transition reinforcing layer and a fireproof conducting layer, wherein the antistatic layer is prepared from the following raw materials: chloroprene rubber, polyurethane rubber, sulphur, a vulcanization accelerator, kaoline, a stabilizing agent, a lubricating agent, an antistatic agent, a flame retardant and an antioxidant; the transition reinforcing layer comprises a cotton fiber net and copper fiber; the fireproof conducting layer is prepared from the following raw materials in parts by weight: cement, phosphate, water, aluminum oxide, asbestos powder, perlite, graphite, conductive mica powder, zinc borate, aluminum borate, sodium aluminate and quicklime. The invention also provides the manufacturing method. The bridge cable protection board has the following beneficial effects that the antistatic performance and the fireproof performance of the material are improved; through the selection and matching of raw materials and the regulation and innovation of the production process, the product quality is improved; the production efficiency is improved.