In order to improve the low efficiency and the low velocity of common cell injection device in manual operation machine at present,a cell injection device based on DSP and ARM was presented.An image processing subsystem based on TMS320DM642 was used to accomplish image sampling and processing,and the results were stored to a special RAM.The control subsystem based on S3C2410 was designed to have man-machine conversation and control macro-micro dual-drive table,and the HPI interface of TMS320DM642 was utilitied to transfer data between DSP and ARM.The experimental results indicate that the positioning precision of the system is 1 μm,which improves the motion precision of the system,and obtains the velocity of image processing of 11 frame/s.