The invention relates to a composition for relaxing bowels. The composition for relaxing bowels is prepared from the following raw materials: 0.01 to 6 parts of folium sennae, 0.01 to 15 parts of momordica grosvenori and 0.1 to 10 parts of platycodon grandiflorum. The composition provided by the invention can be used for preparing food or health-care products for relaxing bowels and also can be used for preparing medicines for preventing or treating constipation. The selected raw materials are safe for a human body and environmentally-friendly； and the invention creatively discovers that the components can achieve the synergistic effect and the effect of reducing toxic and side effects through compatible combined use, can effectively prevent and treat constipation and provides great help for patients plagued by constipation for a long time.
