It was his brother-in-law, Niu Guoshuan, who first let Zhang Yulin appreciate the mysterious skill of Xingyiquan. 1967 One morning, Niu Guoshuan went to the forest outside the village to practice boxing. When I came back, Zhang Yulin found that my trousers were torn, and I didn't know why. He excitedly asked for a fight with his brother-in-law Just after playing for three rounds, he was punched by Niu Guoshuan and hit the steps of the North House from the front of the Westinghouse. Ashamed and anxious, he asked his master Wang Zhendong for advice. After giving him some advice, Wang Zhendong told him that kung fu needs to accumulate over time. Since then, he has strengthened his sense of attack and defense in his usual practice. He eagerly learned martial arts from the older generation, absorbed the nutrition of martial arts theory from the ancient boxing score, and combined with his own personal experience, formed his own unique things.