Abstract: Yangerzhuang Oilfield is a structure massive reservoir with a type active edge and bottom water. The afresh cognition employment about reservoir geology feature was done on the experience of prophase plugging job. The chemical plugging of abio-solid phase technology was studied and applied. A series technology were expound such as using TD-1 capacity unit replace cementing truck, using automatism data acquisition unit monitoring pressure, and using the relationship of the discharge capacity or skin factor and changing of time. After a year’s field testing, seven wells have been done and the efficiency was 87.5%, all the guideline have gained. The repetition plugging jobs were done after the effect period of chemical plugging for weakening the production decline.