Because of his excellent work, Li Yunshan was rated as an advanced projectionist for many times, and was promoted as the captain of the urban and rural projection team and the head of the county cinema. In the 1990s, movies became more and more difficult to maintain because of the emergence of entertainment forms such as TV, VCD and karaoke. Li Yunshan, who worked all his life and loved the film industry, retired on 1994, but he refused to accept this reason. According to years of experience and in-depth investigation, he believes that movies still have a broad market in rural areas, and farmers still like to watch movies, but customs have changed. He decided to set up a family film team, named "Happy Event Projection Team", for the purpose of serving farmers' weddings, birthdays, housewarming and parties. He bought a projector, slide projector, film and motorcycle, and mobilized the whole family to tutor his son, daughter, daughter-in-law, son-in-law and even grandson to check and show films. In order to expand his popularity, he took great pains to write advertisements from village to village by motorcycle. It can be said that 90% of the villages in Fenyang can see his advertising words: "Wedding, showing movies-telephone 734 155 1". He also distributes leaflets and announces them regularly on TV. Soon, the reputation of "holding a wedding screening team" became a household name, with more than 500 telephone appointments every year. The films released by Lao Li are of good quality, low price and good service. No matter how far the village is, how difficult the road is, whether it is windy or rainy, he never delays and tries his best to meet the requirements of farmers. He also kept in mind the festivals of rural coal mines, brick factories and coking plants and the assembly days of villages, so as to facilitate timely contact and deployment of appropriate films and better activate rural cultural life. Lao Li also cooperated with the center to publicize the party's principles and policies in a timely manner; Also actively organize scientific and educational films and patriotic films to be shown to students in schools; He also put agricultural science and technology films in the village to serve farmers to increase production and income. Only four science and technology demonstration villages, such as Li Jiazhuang and he jia zhuang, which he has been in contact with all the year round, have emerged more than 30 breeding experts and leaders; He also made timely slides of good deeds in rural areas, which played an unexpected educational role for people around him.

Thanks to hard work, his "wedding projection team" is getting more and more prosperous and the income is considerable. However, Lao Li made a fortune and didn't forget the poor. Every year, free performances are given to poor villages, schools, welfare homes and military units, and more than 265,438 feature films and science and education films are shown free of charge, which are well received by the society. Today, Lao Li's "wedding projection team" has developed into the largest family projection team in Shanxi, with 6 projectors, more than 90 films and 9 family members. The leaders of the Provincial Department of Culture visited Lao Li's home twice and praised him: "There is no other projection team like Lao Li in Shanxi, and our rural film work depends on people like Lao Li." On May 19, 2004, due to Lao Li's outstanding work, the live film meeting of the whole province was held in Fenyang, and he was awarded the title of "Shanxi Rural Individual Film Demonstration Household".