In this paper we tried to explore the impacts of different factors made under China Pakistan Economic Corridor (CPEC). We have used different variables and have to estimate the impact of these variables upon the GDP of Pakistan. Economic growth measured in GDP by using time series data over the period 1976-2015 for thirty nine years. The purpose of the research is to identify the impact of different factors on gross domestic product (GDP) whether these selected independent factors impacts of Gross domestic product or not. The research is conducted to construct an enhanced description of dependent and independent variables and to interpret the relationship between them. Multiple regression models is used to investigate the effect of five selected independent variables on the GDP of Pakistan. We conclude that the impact of Foreign direct investment on GDP of Pakistan is statistically insignificant which shows that on average foreign direct investment has been not a significant contributor in Pakistan’s economic growth during long run period under study.