In order to solve this problem, we use the principle of limitation to find out the auxiliary teaching aid small cone barrel, which is suitable for the training of volleyball passing technology. Through the teaching experiment of the auxiliary teaching aid small cone barrel, the result shows that the teaching effect of using the auxiliary teaching aid small cone barrel is better than that of the traditional teaching method Results: using the auxiliary teaching aids "small cone barrel" to teach the passing can help the beginners fully understand the key points of passing, form the correct action stereotype, and improve the quality of the teaching. Pass assistive device is very helpful for beginners to master and improve pass technology, which embodies the practicability of the assistive teaching aid.