The project took 1 year to complete the construction, and this test is divided into two stages, namely, 2000 meter water depth simulation test and ROV cooperative operation test. The whole test process is higher than the requirements of ISO international standard type test, and the whole process is completely simulated in accordance with the most severe working conditions, including 2000 meter environmental operation, ROV underwater valve operation, hotstab hot plug, cross-border hose drag, underwater sling trip and buckle and a series of operation tests, and finally verify that the design meets the actual use requirements, and successfully pass the third-party certification.