The study focused on the abundance and diversity of pest’s insect of rice (Oryza sativa). Two varieties such as Komboka and Nerica4 were cultivated at Kashusha’s rice fields in Kabare district of south Kivu, Eastern Democratic Republic of Congo. A split plot design was used. Insects were captured using a sweep net and by hand within each elementary plot between from 6.30 am to 8.30 am at the different stages started, 15^th, 66^th, 91 and 121 days after transplanting. This insect collection method consisted of capturing and harvesting insects by hand from the 2 diagonals of each compartment. Four captures had taken place during its cycle and this cycle has 4 different phenological stages (Nursery or seed plot, tillering, Cob/flowering and maturity). The insect pests collections on two varieties of rice tested allowed us to assess the dynamics and abundance of pest’s insect of rice. On the two varieties 3077 insects were inventoried and retorted by 2204 individuals for Komboka and by 873 individuals for Nerica4. Those species belong to 5 orders and 25 species. Insect pest dynamics were different across all rice phenological stages within Kashusha’s rice area.