The invention discloses an ideological and political education outdoor bulletin board with a circulation structure capable of being driven by hydraulic circulation, and relates to the technical field of bulletin boards, in particular to an ideological and political education outdoor bulletin board with a circulation structure capable of being driven by hydraulic circulation. The bulletin board comprises a bulletin board frame, an auxiliary circulation backflow mechanism and an auxiliary backflow mechanism, wherein two parallel supporting plates are arranged on the two sides of the bulletin board frame, a flow guide groove is formed in one end of the bulletin board frame, a water storage groove is formed in the end, away from the bulletin board frame, of the flow guide groove, and a V-shaped rain shade is arranged at the end, away from the flow guide groove, of the water storage groove. The stored water flows along the main circulation groove, so that hydraulic power acts on a shifting wheel, the shifting wheel is fixedly connected with a shaft rod, the shifting wheel and the shaft rod can rotate synchronously, rainwater flows into a through groove, the shaft rod is in transmission with a transmission roller belt through a connecting belt, a transmission roller and a propaganda belt rotate in a rolling mode, so that the propaganda belt can be driven synchronously to rotate, and therefore, the rotating angle of the propaganda belt can be effectively changed.