Abstract: An improved multi-function bottle opener includes a hollow body (10), a piston (20), a helical coil (30), and a collar (40). The hollow body has a bore (12), a counter bore (14), a shoulder (18) formed between the bore (12) and the counter bore (14), and two opposed trackways (16) defined in an inner wall defining the bore (12). Each trackway (16) is formed as a loop and includes a longitudinal portion (166) and a helical portion (168). The piston (20) is slidably received in the bore (12), and has two opposed lugs (22) which are slidably received in a respective one of the trackways (16). The helical coil (30) is secured to a bottom face of the piston (20). The collar (40) is slidably received in the counterbore (14), and is reciprocatingly urged between the shoulder (18) and an inner flange (142) formed at a bottom of the counterbore (14).