As a backup means of radar control, procedural control plays an important role in case of radar failure. It is very important for controllers to master procedural control skills. To this end, a Python-based procedural control conflict detection and deployment auxiliary teaching system was designed and implemented. Firstly, a seven-layer architecture is designed, covering the user layer, presentation layer, business layer, model layer, data layer, operating system layer and hardware layer. Then, five core modules are constructed: interactive interface module, data preprocessing module, conflict detection module, dynamic conflict display module and conflict deployment module, and the functions and implementation technologies of each module are designed in detail. Finally, taking the actual teaching scenario of Wuhan Nanhu Airport approach control airspace as an example, Python was used to simulate and verify the system. Students can use the system to automatically detect conflict types and propose conflict solutions, so as to better master conflict deployment skills.