Abstract: Shellfish is the modern popular seafood,they are liked by consumers because of their rich nutrition,and the shelling process of shellfish has became the key problem.The ultra high pressure shelling is a kind of emerging technology of food processing,it is popular and commonly used,not only because it can complete the shelling process but also reduce the harmful microorganisms within shellfish meat.Through the research and analysis on the present application situation of shelling technology found by ultra high pressure technology of shellfish of shelling processing,not only the higher shelling rate could be get,while the completely shellfish meat could be obtained and the sensory quality and nutritional value were kept,the product shelf life was extend,therefor,the UHP was a more appropriate to the processing technology of shellfish shell.