Abstract: This paper presents an interactive and microcomputer-based simulation system ofrobot(IMBSSR).The system IMBSSR consists of several main programs and subpr-ograms.It can be used to do analysis of kinematics,dynamics and trajectory ofrobots.Also,IMBSSR can display the structure graphic and curves of kinematiccharacteristics of robots.The paper gives a detailed introduction of structure andalgorithms of the IMBSSR the flow-chart of every algorithm is also given.