The invention relates to a non-lifting self-unloading hydraulic car which comprises high-pressure gas cylinders, a container framework, a front-end pipeline controlling device and a rear-end pipeline controlling device. The front-end pipeline controlling device comprises check valves and manually-operated ball valves, the pipeline of each gas cylinder is provided with an inflation path and a deflation path, a check valve is arranged in each inflation path, and the manually-operated ball valves are arranged in the deflation paths; the rear-end pipeline controlling device comprises an oil-inlet-outlet port, a gas-inlet-outlet port, a conical sealing special-shaped tee coupling, a pressure gauge check valve, a pressure gauge, a manually-operated ball valve, an internal oil-inlet-outlet pipe, a vortex-resisting board and a total gas line controlling ball valve, wherein the gas-inlet-outlet port is connected with a gas source or gas burning equipment, and the oil-inlet-outlet port is connected with an oil path system on a sub hydraulic station. The non-lifting self-unloading hydraulic car achieves pushing of natural gas without jacking the front end, can be used with a conventional sub station in a matched mode, can be used simply by opening the front-end manually-operated ball valve during operation, and is more convenient and practical.