The invention provides a pressure valve debugging system, comprising: an oil supply circuit, including at least one oil pump, the output pipeline of the oil pump has a first output node; a pressure regulation test oil circuit, connected to the first output node, used for installation The pressure regulating valve, the pressure regulating test oil circuit includes a flow meter and a pressure detection access point arranged in series between the pressure valve to be regulated and the first output node; the pressure limiting oil circuit is connected to the first output node and is used to limit the Pressure test oil circuit pressure. In the present invention, the pressure valve to be adjusted is connected to the pressure regulating test oil circuit, and the oil supply circuit regulates the pressure and flow of the pressure regulating test oil circuit, that is, the pressure valve to be adjusted adopts a unified connection mode, and the pipeline does not need to be modified during adjustment, thereby Effectively reduce the operation volume of pressure adjustment, solve the problem of limited operating space, and prevent the impact of disassembly and assembly of pipelines on the cleanliness of the hydraulic system; in addition, pressure adjustment operators do not need to understand the working principle of the circuit, reducing the requirements of operators.