Jiyang Depression is an important Cenozoic oil and gas resource production base in eastern China，and the buried hill reservoir is an important reservoir type. The Mesozoic and Cenozoic tectonic movements play a key role in the formation mechanism and types of buried hill reservoirs. Based on the study of the dynamics of Indosinian movement，Yanshan movement and Himalayan movement and their tectonic responses，the formation mechanism of buried hills in Jiyang Depression was analyzed by synthesizing the tectonic evolution characteristics of different periods，and then types of reservoirs were explored. It was found that the combined actions of Indo-China movement，Yanshan movement and Himalayan movement make Jiyang Depression extruded，tensioned and strike-slipped，which is characterized by extrusion，tension and strike-slip structure responses such as unconformity of the stratum，anticline，reverse fault，inverted structure，negative reversal，and geese fault，etc. Reservoir type and distribution of buried hill reservoir are closely related to extrusion，tension and strike-slip movements. According to reservoir and reservoir control factors，buried hill reservoirs in Jiyang Depression are classified into 3 types including strata，fault block and compound reservoir，and can be further classified into nine subclasses further.