This study used the 1989 Bangladesh Fertility Survey (BFS) the 1993-94 and 1996-97 Bangladesh Demographic and Health Surveys (BDHS) to investigate the determinants of fertility. It used cumulative approach to measure the fertility. Multiple regression analysis were used to identify the determinants of fertility during demographic transition. Strong and high significant effects of female education, employment, place of residence, religion, mass-media, contraceptive use, child mortality and mobility status on fertility have been found. The effect of contraceptive use and child mortality on fertility were positive and all other variables showed negative effect.