Abstract: In order to study the possibility of tip screening out and fracturing technology applied in low permeable reservoir,its experimental conditions and oil enhancement effect in this block are discussed combining with tip screening out and fracturing property from the properties such as structure,reservoir,permeable matter,and so on in Road 44 fault block of No.3 Production Plant in Huabei Oilfield It justifies that the technology has certain popularization value in improving development effect of high pressure and low permeability.The success of the technology test has important significance in exploration and development of the said reservoir whether from yield effect or improving recovery efficiency of measurements.