The present invention relates to a novel magnetic biological filtration pool, and belongs to the technical field of environmental protection and water treatment equipment. The novel magnetic biological filtration pool comprises a water inlet grid, a water inlet box, a fore-pump valve, a water inlet pump, a water inlet pipe, an integrated equipment main body part, an after-precipitation water outlet pipe, an after-precipitation water outlet valve, an effluent disinfection device, and an effluent collection pool, wherein the integrated equipment main body part comprises a bioreactor main body portion, a bioreactor attachment portion and a precipitation portion, and the bioreactor main body portion and the precipitation portion are closely and integrally welded and connected through the organic glass wall on the right side of the integrated equipment main body part. According to the present invention, the impurity on the magnetic filler can easily loosen and shed, the back washing is not required, and the filtration pool clogging can be effectively prevented; and the condition of the water flow in the magnetic adsorption filler in the filtration pool and the uniformity of the organism on the filler can be improved, such that the problem of the non-uniform growth of the biological films on the filler front end and the filler rear end in the traditional filtration pool is avoided so as to substantially increase the microorganism utilization rate of the filtration pool filler.