This study investigated the financial sector policies and economic growth link in Nigeria with a focus more on the insurance sub-sector. The study adopted the time series research design, where data for evaluation covering the period 2010 to 2018 were obtained from several editions of the Central Bank of Nigeria (CBN) Statistical Bulletin. Gross capital formation, total insurance premium and total insurance investment were used to represent financial sector policies, while gross domestic product was used as proxy for economic growth. Data were analyzed using descriptive statistics and multiple regression technique assisted by E-views 10 software. The study found that gross capital formation and total insurance investment were significantly related to gross domestic product, while total insurance premium had insignificant effect on GDP. Also, gross capital formation and total insurance premium had negative effect on GDP, but total insurance investment was positively related to GDP. The study concluded that financial sector policies made statistically substantial contribution to the growth of the Nigerian economy with a coefficient of determination and probability of F-statistics values of 0.99246 and 0.00001 (less than 0.05 level of significance) respectively. It is therefore recommended that the regulatory authorities should put in place policies to make it attractive for Nigerians to patronize insurance business as this would translate to increased insurance investment and further result to growth of the Nigerian economy since insurance investment was found to have positive link with gross domestic product.