From domestic and foreign research present situation, the paper introduces the current research situation of low permeability oilfield fine reservoir description, and compared the difference of the related studies at home and abroad. Permeability of low permeable reservoir is thought in (0.1～50)×10_-3μm₂. Based on the practical research, summarizes the low permeable oil fields of fine reservoir description study to five key problems, namely the method of single sand body fine prediction and description and fracture characterization of microscopic pore structure with all kinds of informations, low permeability reservoir flow unit classification, low permeability reservoir protection technology, etc. At the same time points out the direction of fine reservoir description of low permeability oilfield five development trends. Respectively is: micro-structural description; Reservoir diagenesis and other geological genesis analysis; CO₂ or nitrogen injection in low permeable oil fields, or polymer flooding mechanism related experiments; Under the background of low oil prices, fine reservoir description to strengthen economic effectiveness evaluation, ensure the fine reservoir description research achievements in the development adjustment scheme, old fields are successfully applied in production practice such expanding reserves exploitation; Designed for horizontal well in fine reservoir description and other engineering measures for the implementation of the relevant basic research.