After the war, Bokelj started to play in the Montenegrin Republic League in 1947. Only four years later, the team from Kotor were promoted to the Yugoslav Second League ("season 1951"). From that year to 1991, FK Bokelj played overall nine seasons in the Yugoslav Second League. During the other seasons, the club participated in the Montenegrin Republic League (third rank of football in SFR Yugoslavia), winning the title eight times. Except that, in the period between 1988-1992, Bokelj played four seasons in the new-established Yugoslav Third League.