Abstract: The casing pipe tensioner hydraulic cylinder transfer the force to the casing pipe through Slips and provide the casing pipe with continuous top tension. The casing pipe tensioner hydraulic cylinder is a key part of the casing pipe tensioner system. The casing pipe tensioner hydraulic cylinder is highly valued by the domestic and foreign offshore drilling manufacturers because of its performance and manufacturing quality are related to the stability and safety of the casing pipe. Combine with the working parameters and properties requirements of a foreign casing pipe tensioner hydraulic cylinder，the manufacturing and detection technology which are easy to realize are used to solve the technique target of the hydraulic cylinder. The test results show that the hydraulic cylinder meets the practical application requirements on the properties requirements.