The aim of this paper is to explore, by estimating a panel data econometric model, thedetermining factors of foreign direct investment (FDI) inflows in developing countriesover the period of 1990-2007. The study is based on a sample of panel data on 25developing countries. In the model, dependent variable is FDI inflows. Independentvariables are FDI outflows, GDP, BOP, population, openness of the economy, mobile,internet, technology, ODA and labor. According to the econometric results, in themain model, openness of the economy, market size, availability of labour force, ODA,mobile, technology and internet have positive effects on FDI inflows in developingcountries.