This study was designed to assess the comparative profitability of T. Aman rice farming in saline and nonsaline area at Dacope upazila of Khulna district of Bangladesh. In total, 240 farmers were randomly selected for the study among which 120 from saline area and rest 120 from nonsaline area. Descriptive statistics, activity budgets, Cobb-Douglas production function model were employed to achieve the objectives of the study. The study confirmed that T. Aman rice production of nonsaline area were profitable than saline area. Per hectare total cost, gross return and net return of T. Aman farming in nonsaline area were Tk 33,097.00; 59,723.00 and 26,626.00, respectively. Similarly, Per hectare total cost, gross return and net return of T. Aman farming in saline area were estimated at Tk 37,003.00; 50,666.00and 13,663.00, respectively. It was observed that the coefficient of human labour, power tiller and insecticide were positive and had significant impacts on gross returns of T. Aman rice production in nonsaline area. Similarly, the coefficient of seedling, power tiller, human labour, TSP and insecticide were positive and had significant impacts on gross returns of T. Aman rice production in saline area.