Through the comparison of multi angle testing and optimization tools of several teaching platforms, combined with the characteristics of online teaching and the actual test and application effect, we put forward the concept and specific implementation method of closed‐loop integration of team cooperation to optimize the division of labor, and also give the specific solutions. Through the test, the mode's group cooperation, optimized division of labor, efficient application, closed‐loop integration and resource sharing forms can effectively carry out online teaching content without class suspension. Based on the commonness of online teaching, this model is not only suitable for mathematics, but also suitable for group cooperation, closed‐loop integration, resource sharing mode and multi platform and multi angle teaching integration concept Used in other disciplines.