The invention discloses a pumped pasty fluid mining with filling pipeline cleaning-free process technology. The technology comprises the following steps that S1, during normal filling work, pasty fluid slurry enters a hopper of an industrial filling pump; S2, the industrial filling pump carries out pumping, and the slurry is conveyed to the underground filling site through a ground conveying pipeline, a conveying vertical pipe and an underground conveying pipeline, and the pasty fluid flowing direction is indicated by the arrow in the chart; and S3, at the tail stage of filling work, a cementing material is stopped from being added, and the pasty fluid slurry without the cementing material enters the hopper of the industrial filling pump. The pumped pasty fluid mining with filling pipelinecleaning-free process technology achieves the aim of omitting the flow of pipeline cleaning in the pumped pasty fluid filling work process, the pasty fluid filling pipe washing flow is omitted, the frequency of the pasty fluid filling pipe washing is reduced, manpower and material resources are saved, the pasty fluid filling cost is reduced, meanwhile, the pipe blocking probability is reduced, and long-time use is facilitated.