Abstract: The present disclosure provides a resealable drinking straw including a straw body which comprise a first sidewall, a second sidewall and a bending portion, the first sidewall is connected with the second sidewall by the bending portion to form a tubular shape; a hollow portion defined by the first sidewall, a second sidewall and the bending portion, extending along a axial length of the straw body; an opening defined by opposing edges of the first sidewall and the second sidewall, extending axially along the straw body; the opening is closed by mating the first sidewall and the second sidewall to allow fluid passage through the hollow portion. This design can solve the problem that the interior of prior known drinking straws are difficult to wash. The apparatus disclosed herein provides a leak proof effect for suction.