With the application background of 16 inch industrial fan blades’ scribing process,a simple and practical 2-DOF parallel plane scribing device is proposed to replace the traditional manual scribing. The direct and inverse kinematics solutions,workspace and singular configuration of the mechanism are analyzed and solved. Some contour curve equations are fitted based on the data points which are measured by a three coordinate measuring machine. According to the blade’s contour curve,each input link’s motion characteristic is obtained by using MATLAB,which provides a new way to realize blades’ automatic scribing process technology. The application background of 16 inch industrial fan blades’ scribing process, a simple and practical 2-DOF parallel plane scribing device is proposed to replace the traditional manual scribing. The direct and inverse kinematics solutions, workspace and singular configuration of the mechanism According to the blade’s contour curve, each input link’s motion characteristic is obtained by using MATLAB, which provides a new way to realize blades ’automatic scribing process technology.