Gas detection leakage testing equipment and method

The invention discloses gas detection leakage testing equipment which comprises a tool box, a hydraulic driving assembly is arranged at the top of the tool box, a pressing plate is arranged at the output end of the hydraulic driving assembly, and an airtight tool located in the middle of the tool box adaptively presses a product in the pressing process of the pressing plate; the airtight tool comprises an upper clamp and a lower clamp, a tool for placing a product is arranged on the surface of the lower clamp; the multiple elastic rods are arranged on the upper clamp, and the multiple elastic rods conduct elastic sealing on the product in the downward pressing process; the sliding columns are arranged between the upper clamp and the lower clamp, and the upper clamp is pushed by the pressing plate to slide on the sliding columns; a cavity air inlet hole and an oil channel air inlet hole are formed in the side portion of the lower clamp, and a side face sealing assembly used for sealing a product oil channel is