The flow of foreign capital into a country is an issue of great relevance for economic and political studies, since it constitutes an important source of resources for the development of emerging economies. The research was a non-experimental, correlational explanatory research with a longitudinal design. The objective of the study was to determine the factors that influence foreign direct investment in Peru during the period 2012-2021. For this purpose, a multiple linear regression model was used with data from the Central Reserve Bank of Peru and the National Institute of Statistics and Informatics. The results show that foreign direct investment in Peru is mainly influenced by factors such as country risk, exchange rate and terms of trade, while inflation and the economically active population do not influence it. In addition, an inverse relationship was found between foreign direct investment and the variables inflation, country risk and terms of trade, and a direct relationship between foreign investment and the variables economically active population and exchange rate. It is concluded that a factor external to the variables studied that influences foreign direct investment in Peru is political instability, on which work should be done to improve the country's political stability in order to strengthen the confidence of foreign investors.El flujo de capitales extranjeros hacia el interior de un país es un asunto de gran relevancia para el estudio económico y político, ya que constituye una fuente importante de recursos para el desarrollo de las economías emergentes. El objetivo de la investigación fue identificar los factores que determinan la Inversión Extranjera Directa (IED) en Perú durante el periodo 2012-2021. La investigación fue no experimental, de nivel explicativo correlacional de diseño longitudinal. Para ello se utilizó un modelo de regresión lineal múltiple con datos del Banco Central de Reserva del Perú y del Instituto Nacional de Estadística e Informática.