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A kind of hydraulic check valve detection device.The hydraulic check valve includes inlet oil passage and outlet oil passage;The detection device includes: shell, with first gas passage in the shell;First joint is located on the surface of the shell and is communicated with the inlet oil passage of the hydraulic check valve by the first gas passage, for the first gas into the inlet oil passage of the hydraulic check valve;Sealing test component is located on the shell, for fixing the hydraulic check valve, and the outlet oil passage side of the hydraulic check valve is pressure tested.Using the above scheme, the test efficiency and test accuracy of the performance test of the hydraulic check valve can be improved.