The invention discloses a method for measuring inner and outer stator threading concentricity. The method is characterized by comprising the following steps: performing measurement modeling on an inner stator and an outer stator by using a three-coordinate laser measuring instrument, and fitting out center lines of the inner and outer stators; selecting non-interference positions on the inner andouter stators to place leapfrog points, threading, fitting inner and outer stator models created before threading by using the leapfrog points, and determining positions of the two stators; measuringdeviation of the fitted inner stator center line and the fitted engine base center line so as to obtain the actual deviation condition of the inner and outer stator centers, performing corresponding adjustment according to standard requirements, measuring and adjusting again until the deviation meets the standard requirement. According to the method disclosed by the invention, the measurement modeling is performed at a position which has direct decisive impact on subsequent installation during measurement, errors brought by different measuring datum are eliminated, and the method has the advantages of being simple in structure, convenient to operate, high in shaping precision and the like. In addition, the production efficiency is improved, and the method can be popularized and applied ina full range of products.