In order to be able to measure the parameters of the movingcoil geophone at any time in the lab and field construction site, based on DC excitation method, this paper gives a design scheme of movingcoil geophone parameter tester using Cyclone Ⅲ EP3C40F780 and ADS1282 as its hardware. As the main controller of the tester,The field programmable gate array(FPGA) receives data from ADS1282 and sends them to PC through Ethernet. After being processed by software, parameters of geophone will be got and saved. In this paper, a series of LGT20D geophones were tested by this tester. The results show that the geophone parameter tester has high accuracy in smalldamping geophone test.