In this stage, the stratigraphic traps in Jiyang depression is low in success rate of exploratory wells, and pre-drilling risk is difficult to predict. Through the analysis and summary of wells drilled in the“Tenth Five-Year”, the failure of the exploration well is attributed to poor transportation conditions, low filling of oil-gas in reservoir, lack of effective reservoirs and traps, at 49%, 21%, 15% and 15% respectively. The reservoir analysis shows that the positive structural background and the neighboring oil-source fault is the key stratigraphic trap reservoir. Based on the analysis herein, the geological conditions influencing the accumulation of stratigraphic reservoir are mainly migration and accumulation, storage, trap and reservoir property. According to the evaluation of the geological conditions of stratigraphic traps in Jiyang depression, we establish the pre-drilling risk assessment method for stratigraphic trap, and then it is tested and verified. The results show that the evaluation results accords well with the actual drilling results, and the well of Jinping2, Chengdong112 with higher geological risk are all hydrocarbon accumulated, but the well of Chengdong111, Wang951 and other wells with low geological risk are not hydrocarbon accumulated.