As paste bag phenomenon appeared in the process of dust removal system has lead to higher system running resistance, our technical personnel rush to the scene to find a way out. In order to reduce the running resistance, they decide to take the scheme that washing filter bag with high pressure water to reduce system running resistance. The paste filter bag has been took out and hanged up with high pressure water washing to remove the dust pasted on the surface. After filter bag drying, it has been reused in running system and has a good performance. The water flushing way to remove the paste bag dust has realized the purpose of reducing running resistance.