The present ethnobotanical study focuses on plants use to treat several diseases of the digestive system, The study aims to collect data on the plants used, their names, the parts used, the technics of preparation of the products, as well as the administration way of the drugs. In this study, we inventoried 87 plants used in the treatment of diseases connected with the digestive system in Kinshasa and neighborhoods. The families of Euphorbiaceae, Zingiberaceae, Asteraceae and Rubiaceae are the most represented in this disease category. To improve more understanding of the importance and traditional value of medicinal plants inventoried, the present study further describes the vernacular plant names with their languages as possible. Although these plant species constitute a less expensive source of medicine for people with low income, the study also advocates sustainable management and rational use of plants mentioned to achieve access to health care and sustainable development.