The three-act drama Longxugou is one of Lao She's representative works. Initially, it was created to match current events and policy propaganda, and it was an ode to a new socialist China. The play was completed on 1950 and premiered at Beijing People's Art Theatre in February, directed by Jiao Juyin. Longxugou describes the different experiences of four families in a small miscellaneous hospital in Beijing during the social change, showing the great changes in the old and new times.

Writing technique: seeing the big from the small.

"Longxugou" was originally a drama created to cooperate with current events and policy propaganda, but it reflects the great times by describing small things in daily life, and expresses the truth of life with the flavor reflected by the daily words and deeds of civil society figures and the shortcomings of parents.

For example, in the play, Ding Si went home to play a big man to avoid drinking in the gutter before liberation, and his attitude changed when the gutter was built after liberation. Zhao Lao was in the plot, but he did not promote political slogans or deliberately describe the policy of benefiting the people of the Beijing People's Government. He just expressed the new atmosphere after liberation through some simple exhortations from Sisao, Zhao Lao and Chun Er.