Deformation band is a local structure widely developed in porous sandstones and sediments. It is one of the main structural units of the fault zone and can affect fluid migration. In different diagenetic stages,the deformation bands in pure porous sandstone follow the formation sequence of disaggregation band,cataclastic band and solution band,while the formation of phyllosilicate band is mainly related to the content of phyllosilicate minerals in the rock. A complete time evolution sequence of deformation bands includes single deformation band,clusters of deformation bands,joints and faults.Different types of deformation bands can superimpose. The variation of thickness,continuity and permeability of deformation bands in three-dimensional space is the key factor affecting fluid percalotion,and it is also important to study the internal structure of the fault zone. Different types of deformation bands will result in the selective filling of hydrocarbon. At present,the research on the three-dimensional spatial distribution of outcrop deformation bands in China is rather insufficient,and the deformation bands in oil-bearing basin cannot be efficiently identified so far because of the limitation of core and logging data. Therefore,an in-depth study of the development characteristics and distribution of deformation bands will be of great advantage to guide the fault modelling and fluid migration analysis.