The paper puts virtual prototyping technology,finite element technology and optimal design into the design of hydraulic support for the development status of hydraulic support and the problems in the traditional design. It takes ZF2800/16/24 hydraulic support as a model and establishes the 3-D model of hydraulic support by using Solidwork sofrware, also builds the simulation model of the hydraulic support and does a simulation exereise.The performance of the four link bar is analyzed.By analysing to the canopy which is subjected to torque by using Cosmos software, the paper obtains the stress and strain distribution of all the elements or nodes on the canopy by a graph. From the analysis of the result ,designers can fully and exactly find out the force of all points of the canopy .And this way can also solve the question that there is not enough number of the testpoint in the traditional prototype test. In the meantime, the canopy can be optimized because its biggest stress is far smaller than the allowable stress of the material. And the canopy can be optimized,increase the economic benefit.