Land evaluation is assessing land resources for a specific purpose using a tested approach. Tomato and Chili plants can be planted in rice fields or dry fields, lowlands and highlands, and during the dry and rainy season. This study aimed to determine the land suitability of the superior vegetable commodities of tomatoes and chilies in Moyo Hilir District, Sumbawa Regency, West Nusa Tenggara using the Geographic Information System (GIS). This research method uses descriptive analysis. Namely, the research data is displayed in tables and maps. The data includes rainfall and temperature, nutrient retention (pH H2O, CEC, and organic C), salinity, N-total, texture, and drainage. The results of the evaluation of land suitability were categorized into four classes, namely, highly suitable (S1), moderately suitable (S2), marginally suitable (S3), and not suitable (N). The overlays obtained in Moyo Hilir District for land suitability for tomato and chili commodities are in two classes, namely highly suitable (S1) and moderately suitable (S2), with an area of S1 tomato 19315.52 ha, S2 tomato 813.03 ha, S1 chili 19310.26 ha, and chili S2 818.29 ha.