Since the beginning of the new century, Mr. Li has devoted his main energy to the exploration of "The Secret of Yang's Internal Strength from Taiji", and made great efforts to cultivate a group of "true achievements" descendants. He was occasionally invited to go abroad or preach in Hongkong and Taiwan Province.

In 2004, at the invitation of the President of Slovenia, he went to that country to teach Tai Chi internal skills and Qigong techniques. Slovenia is located in the northern Balkans. It is a country that joined the former Yugoslavia-a mountain city country with beautiful natural and cultural landscape, with a land area of more than two million square kilometers and a population of nearly two million. The country is prosperous and the people live and work in peace and contentment.

Mr. Li's trip to Slovenia originated from one of his students, Mary. After she got the text about acrobatics from Mr. Li, she translated it into Slovenian and gave it to the president of that country. After reading it, the President was moved by China's kung fu and sent an invitation to Mr. Li in 2004. Mr. Li was deeply respected during his stay in Slovenia. Before and after 10 days, it left a deep impression on the President and enhanced his knowledge and understanding of China's traditional culture.

2005 is an auspicious year for Mr. Li to enter his eightieth birthday. Just after the Spring Festival, he received an invitation from Hong Kong Chinese Traditional Tai Ji Chuan Society. In early April, I set out for Hong Kong. During his twenty days in Hong Kong, he was welcomed by all the boxing circles in Hong Kong. Together with his fellow disciple Jiang Youkui, he teaches Tai Ji Chuan (Laoliu Road) and "Health Keeping" to Hong Kong martial arts lovers every day, which is deeply loved by martial arts lovers and citizens. At the request of Hong Kong compatriots, the book Prevention and Natural Therapy of Urban Diseases was also published. To thank Li Shifu for his hard work, the Hong Kong Traditional Tai Ji Chuan Society presented Li Shifu with a gold-plated plaque engraved with the words "Martial Arts Master".

At the end of the same month, at the invitation of Haifo College in Singapore, Teacher Li went to Singapore to teach Yang's internal skill-Tai Ji Chuan's "Old Six Ways". After listening to Mr. Li's lecture and watching the internal skill performance, everyone praised his internal skill boxing, which is a rare "stunt"-real kung fu.