Abstract: Low-temperature plasma technology could activate seed internal material，improve its ability to adapt to the external environment and increase production.However，the present relevant theoretical research is not deep enough，the overall level of processor development is not high.Through building a low-temperature plasma test platform used for seed processing and using this technology to process crop and grass seeds，this research could find out optimum treatment dose for the highest germination rate.At the same time，effect of low-temperature plasma processing on seed germination and seedling characteristics was found.The data acquisition and intelligent monitoring system on test platform could monitor，control and pick-up the key data of test conditions，process and results，which will provide conditions to develop the digital intelligent seed processor.The research could get the key data of low-temperature plasma equipment processing the seed，improve ability of germination and growth.And also，it could provide technical support for develop the seed processor in large scale，which has an important significance.