The permeability and flow conductivity of fractures caused by hydraulic fracturing are key factors to affect the results after fracturing. Microseismic fracture monitoring technology (MFMT) can be used to analyze fracture expansion laws and guide the optimization of fracturing design. Since MFMT has many advantages such as monitoring fracture formation and evaluating fracturing result, which can provide reference basis for adjusting fracturing design and compiling scheme and has inmportant significance in improving production of low permeability oil reservoirs. Firstly, this paper the explained principle and characteristics of MFMT. Then, combing with the MFMT dataset of one oilfield, the microseismic source position was inverted and the fracture parameters in each fracturing process were derived. Finally, the processes of fracture development and evolution were predicted and evaluated. Results show that MFMT can be used in indicating the positions of fractures, analyzing fracture development, assisting with accurate inversion of microseismic positions and guiding the process of hydraulic fracturing.