Under the action of primary structural fractures and drilling induced fractures, well leakage is prominent in the Hangjinqi block, and conventional static plugging or bridge plugging is not effective. Based on the principle of “fiber bridging, filling up and standstill, cementing and curing”, a leak plugging slurry was developed through optimization of fibers and their length make-up ratio, sizing of floating beads and micro-silicon, and cement, and conditioning of expansion, thickening and toughness of the solidified solids. The plugging design method and process control measures were adopted to form a leak plugging technology suitable for fracture type leakage in Hangjinqi block. It has been used in 162 wells in the field and the success rate of one-time plugging is 93.7%, which can significantly improve drilling efficiency. It can also provide some reference for fracture type lost circulation in other areas.