The utility model relates to a filling pipeline cleaning method and device, in particular to a cement filling material conveying pipeline cleaning method and device and belongs to the technical field of underground mining safety. According to the cleaning device, two or more through holes leading to the circumferential cylindrical face of a cylinder are formed in one side face of the cylinder, the through holes deviate from the radial direction of the cylinder, a series of radial blind holes are further formed in the cylindrical face of the cylinder, springs and brush handles with brush heads are sequentially arranged in the blind holes, connecting pillars are fixed to the centers of the two sides of the cylinder, tension springs are arranged on the connecting pillars, and the tension springs are connected with the front connecting pillar and the rear connecting pillar of the unit cylinder. The cement filling material conveying pipeline cleaning device is simple in structure, low in cleaning liquid air consumption, high in efficiency and capable of efficiently and thoroughly removing slurry residues, with certain bonding strength, on a pipeline wall.