A single -service package box for jasmine tea is including box body and lid, still including setting up rotary mechanism on the lid and establishing be used for on the box body with rotary mechanism complex fastening sealing mechanism, rotary mechanism is including establishing mounting hole, closed hole and general on the lid the mounting hole with the screw hole of closed hole intercommunication, establish rotating head in the mounting hole and double -screw bolt that the rotating head is connected and spliced pole that the double -screw bolt is connected, establish the pointed end of spliced pole tip portion and establishing be used for in the closed hole sealing up the sealing washer of spliced pole. The utility model discloses a packing carton does not adopt traditional dependence boxbody and the frictional force between the lid and extrusion force to realize firm in connection, but adopts gaseous extrusion to make box body and the lid to connect the fastening, in case the quiltwas used, only if waste recovery otherwise cannot make up to pack once more, prevents that lawless persons from adulterating to make profit moreover.