In the DRC, despite all the efforts made with partners to promote the use of impregnated mosquito nets, malaria continues to pose a major public health problem due to its high morbidity and mortality, especially among children and pregnant women. The prospective study of the problem of the use of insecticide-impregnated mosquito nets in malaria prevention among children aged 0 to 5 years, using a survey method, aimed to assess the level of knowledge, attitudes and household practices related to the use of mosquito nets, and to identify the socio-cultural and economic factors linked to the low or non-use of mosquito nets in households with children under 5 years of age, in order to propose solutions. The study involved 375 households with children aged 0 to 5. The key results observed were: -97.6% of heads of households surveyed had heard of malaria, 60.2% believed that mosquitoes are found in stagnant water, 95.7% knew about mosquito bites as a means of transmission, 93% were informed about the advantages of using a mosquito net.