The project goal is to develop a 3D Scanning Measurement system (SMS) to scan and measure the profile of a wind turbine blade. Using the data from measurement to: (1) analyze the accuracy and efficiency of wind turbine blade, (2 )get the variance and standard deviation between the database and the shape model of the blade to improve the accuracy of SMS, Not only can the SMS performance be improved the performance of SDSWN but also the system cost can be down so as to attract the commercial competitiveness in the future. SMS included: (1) a 3.0meter X-axis moving platform, (2) a linear scale, (3) a 3D scanning head, (4) a head supporting frame, (5) a PID controller and (6) a ruthless DC motor. We are one year to establish the whole system with meaning; a nay is all applicant, successfully.