The invention provides a refluxing device for decreasing the axial force of a centrifugal pump. First refluxing holes are evenly formed in the outlet section of the centrifugal pump in the circumferential direction, and second refluxing holes and third refluxing holes are both evenly formed in a front cover of the pump in the circumferential direction; the two ends of refluxing pipelines of a tee joint structure are connected with the first refluxing holes and the second refluxing holes and the third refluxing holes. A high-pressure fluid flows out of the refluxing holes formed in the outlet section of the centrifugal pump and penetrates through the refluxing pipelines to enter a front pump cavity with lower pressure from the second refluxing holes and the third refluxing holes. According to the refluxing device for decreasing the axial force of the centrifugal pump, on the premise that an internal flow field of an impeller is not disturbed and the efficiency is not reduced, a pressure difference between a front cover plate and a rear cover plate is decreased by increasing the pressure of the front cover plate, and the purpose of decreasing the axial force of the centrifugal pump is achieved.