The invention relates to the technical field of battery production equipment, in particular to an adhesive tape sticking assembly of a soft package battery. The adhesive tape sticking assembly comprises a supply mechanism, a feeding mechanism and an adhesive tape sticking mechanism, wherein the feeding mechanism and the adhesive tape sticking mechanism are arranged around the feeding mechanism, the supply mechanism is used for providing an adhesive tape for the feeding mechanism, the feeding mechanism is used for transferring the adhesive tape from the supply mechanism to an adhesive tape sticking position of the adhesive tape sticking mechanism, the adhesive tape sticking mechanism is used for sticking an adhesive tape to two end faces of a tab of the soft package battery respectively byoverturning the adhesive tape. According to the adhesive tape sticking assembly, the adhesive tape is overturned and pasted on the two end faces of the tab, so that the problems of loosening, short circuit and the like caused by the fact that the upper adhesive tape and the lower adhesive tape are pasted are decreased, and the final yield of the battery is increased.