The invention belongs to the field of porous ceramic materials, and particularly relates to a hollow plate ceramic filter membrane and a preparation method thereof. The technical problem to be solved by the invention is to provide the hollow plate ceramic filter membrane and the preparation method thereof. The filtering membrane is prepared by the following steps: taking heat-conducting Al2O3 ball defective products as main raw materials, and then supplementing specific fluxing agents, phase change reinforcing agents, sintering agents, pore forming agents, binding agents, plasticizers and expanding agents, performing extrusion molding, drying and sintering to obtain a hollow flat plate ceramic membrane support body; and then dipping into dipping slurry consisting of alpha-alumina powder, limestone powder, magnesite powder, ferrosilicon ash powder, zircon sand powder, titanium dioxide powder, copper oxide powder, cellulose, Guangxi white mud, paper pulp waste liquid and an expanding agent, taking out and firing, thereby obtaining the product. Waste resources are fully utilized, the raw material cost is greatly reduced, and the prepared hollow plate ceramic filter membrane can be widely applied to liquid-solid separation in the industries of industrial and domestic wastewater treatment, brewing, chemical engineering, medicine and the like.