In this research presents the study of risk evaluation and analysis of vulnerability to flood threats in the populated center Huancaquito Bajo. The populated center is located on the left margin of the Virú River and during periods of the phenomenon of the child floods of large agricultural and urban areas occurred according to the data presented by the National Institute of Civil Defense (INDECI, by its Spanish acronym) That is why we searched to evaluate the risk and vulnerability analysis. Previous studies were necessary, such as the 2 km topographic survey of the populated center Huancaquito Bajo, the soil survey every 500 m and a hydrological study taking historical data from the Huacapongo and Sifón Viru hydrometric station, these basic studies allowed a hydraulic simulation to be carried out systematically, integrating technological tools such as the Hec-Ras 5.0.6, which allows ...