At present, competitive sports is the core of national sports competitiveness and the key to the development of national sports. As an important event of the Olympic Games, wrestling is gradually attracting the attention of gold medal competitions in various countries. This article aims to study the application of functional training methods in wrestling training. Based on the analysis of the principles of functional training, the evaluation methods and training methods commonly used in functional training, 20 male wrestlers from a sports college are the research objects. Divide them into experimental group and control group, observe the difference of wrestling training effect between the two groups of athletes under different training methods. Experimental results show that functional training can improve the balance ability of wrestlers.