This study was initiated as part of making a place of state on horticulture in the Katanga Province of the Democratic Republic of Congo. It aims to analyze the contribution of the vegetable sector to poverty reduction through its impact on the income of vegetable growers. The study is realized in the large scheme of vegetable Kilobelobe in the Annex town in Lubumbashi, Katanga, Democratic Republic of Congo. From the data of the survey conducted in January-February and March 2014, we analyze the different functions of gardening and its effect on poverty reduction in the socio-economic context of Lubumbashi. We start from the assumption that households would benefit from the multiple functions of gardening, and it would contribute to poverty reduction. Thus, the study focused on a sample of 50 vegetable growers randomly drawn based on the census list available in the study site. The results, it appears that producers benefit multiple socio-economic functions of gardening. In, fact, it appears from analyzes that this branch of family agriculture meets society's expectations: reducing unemployment, the main activity of peri-urban agriculture, and income-generating, contributing to health care, food security and to waste management through recycling biodegradable materials in other sectors (agriculture and livestock).