This paper introduces the overall program design, structure of system and control programming of the manipulator of six degrees of freedom. Superior PC control manipulator of six degrees of freedom by the VB visual interface. By acquisition data of photo electric coded disk,, action status of manipulator each freedom can be feedback to PC. PC control the output to drive electric motor by the parallel port, and complete complex workpiece transportation, assembly, automatic feeding process etc. The design mainly settle issues of the parallel port data acquisition, processing, path planning and design, VB programming and monitoring.