An anti-explosion package of a soft-packed secondary battery, comprising an upper film, a lower film, a packaging area and an anti-explosion area, an outer edge of the upper film and an outer edge of the lower film are sealed and connected with each other, so as to form a hollow cavity for accommodating a naked battery core; wherein, a packaging area with a certain width is provided on at least one outer edge of the upper film and the lower film, the anti-explosion area is arranged in the packaging area, all the packaging areas of the upper film and the lower film are adhered together except the location of the anti-explosion area, so that the upper film and the lower film are sealed at this side, the anti-explosion area comprises an opening area and a transition area, the opening area and the transition area are arranged successively in a direction from an edge of the packaging area close to the hollow cavity to an edge away from the hollow cavity; a portion of the upper film and the lower film located at the opening area is not adhered, a portion of the upper film and the lower film located at the transition area is adhered with an intensity less than that of the packaging area; and characterized in that: the opening area comprises an opening connected with the hollow cavity, a first bottom edge connected with the transition area and two first side walls connecting the opening area and two ends of the first bottom edge; the length of the first bottom edge is less than that of the opening; the transition area comprises a top edge connected with the opening area, a second bottom edge away from the opening area and two second side walls connecting the top edge with two ends of the second bottom edge, the length of the second bottom edge is less than that of the top edge; the first bottom edge overlaps with the top edge, an extending direction of the second side wall is same as that of the first side wall. an outer edge of the upper film and an outer edge of the lower film are sealed and connected with each other, so as to form a hollow cavity for accommodating a naked battery core; wherein, a packaging area with a certain width is provided on at least one outer edge of the upper film and the lower film, the anti-explosion area is arranged in the packaging area, all the packaging areas of the upper film and the lower film are adhered together except the location of the anti-explosion area, so that the upper film and the lower film are sealed at this side, the anti-explosion area comprises an opening area and a transition area, the opening area and the transition area are arranged successively in a direction from an edge of the packaging area close to the hollow cavity to an edge away from the hollow cavity; a portion of the upper film and the lower film located at the opening area is not adhered, a portion of the upper film and the lower film located at the transition area is adhered with an intensity less than that of the packaging area; and characterized in that: the opening area comprises an opening connected with the hollow cavity, a first bottom edge connected with the transition area and two first side walls connecting the opening area and two ends of the first bottom edge; the length of the first bottom edge is less than that of the opening; the transition area comprises a top edge connected with the opening area, a second bottom edge away from the opening area and two second side walls connecting the top edge with two ends of the second bottom edge, the length of the second bottom edge is less than that of the top edge; the first bottom edge overlaps with the top edge, an extending direction of the second side wall is same as that of the first side wall. the opening area comprises an opening connected with the hollow cavity, a first bottom edge connected with the transition area and two first side walls connecting the opening area and two ends of the first bottom edge; the length of the first bottom edge is less than that of the opening; the transition area comprises a top edge connected with the opening area, a second bottom edge away from the opening area and two second side walls connecting the top edge with two ends of the second bottom edge, the length of the second bottom edge is less than that of the top edge; the first bottom edge overlaps with the top edge, an extending direction of the second side wall is same as that of the first side wall.