As the connection of micro-electronics and powerful engineering equipment, Electro-Hydraulic proportional controller has been important part of integration of mechanics and electrics. It’s the core of Electro-Hydraulic proportional controller system and has a tremendous impact on it. The prevalence of domestic proportional controller poor reliability, short life and other issues, therefore, this paper developed a new type of electro-hydraulic proportion controller with a graphics user interface based on Qt. After experiment, it shows the controller has some advantages as follows, low power consumption, high repeatability precision and low temperature drift. And the graphics user interface is friendly with stable performance