A battery pack, comprising: a battery module having a plurality of secondary batteries; and a pack housing including an outer wall configured to form an inner space for accommodating the battery module, a handle having a handle bar configured to elongate in one direction and a strap configured in the form of a bendable strap to respectively extend from both ends of the handle bar, and an accommodation portion configured so that the handle bar is loaded therein, the accommodation portion being configured such that the strap is embedded therein in a state of being bent at least once when the handle bar is loaded therein, the accommodation portion being configured such that a center portion between extensions of the strap respectively extending from both ends of the handle bar is caught therein when the handle bar is drawn out, wherein the strap has a loop form connected integrally, and a part of the strap is positioned inside the handle bar, wherein the accommodation portion includes: a stopper configured to block the center portion between the extensions of the strap respectively extending from both ends of the handle bar not to move upward; and an accommodation space in which the strap is embedded in a state of being bent at least once, and wherein the handle bar is configured to be loaded on the stopper, a receiving space containing a first magnetic body is provided to a lower portion of the stopper, and the handle bar includes a second magnetic body configured to apply an attractive force to the first magnetic body by a magnetic force. a battery module having a plurality of secondary batteries; and a pack housing including an outer wall configured to form an inner space for accommodating the battery module, a handle having a handle bar configured to elongate in one direction and a strap configured in the form of a bendable strap to respectively extend from both ends of the handle bar, and an accommodation portion configured so that the handle bar is loaded therein, the accommodation portion being configured such that the strap is embedded therein in a state of being bent at least once when the handle bar is loaded therein, the accommodation portion being configured such that a center portion between extensions of the strap respectively extending from both ends of the handle bar is caught therein when the handle bar is drawn out, an outer wall configured to form an inner space for accommodating the battery module, a handle having a handle bar configured to elongate in one direction and a strap configured in the form of a bendable strap to respectively extend from both ends of the handle bar, and an accommodation portion configured so that the handle bar is loaded therein, the accommodation portion being configured such that the strap is embedded therein in a state of being bent at least once when the handle bar is loaded therein, the accommodation portion being configured such that a center portion between extensions of the strap respectively extending from both ends of the handle bar is caught therein when the handle bar is drawn out, wherein the strap has a loop form connected integrally, and a part of the strap is positioned inside the handle bar, wherein the accommodation portion includes: a stopper configured to block the center portion between the extensions of the strap respectively extending from both ends of the handle bar not to move upward; and an accommodation space in which the strap is embedded in a state of being bent at least once, and wherein the handle bar is configured to be loaded on the stopper, a receiving space containing a first magnetic body is provided to a lower portion of the stopper, and the handle bar includes a second magnetic body configured to apply an attractive force to the first magnetic body by a magnetic force. a stopper configured to block the center portion between the extensions of the strap respectively extending from both ends of the handle bar not to move upward; and an accommodation space in which the strap is embedded in a state of being bent at least once, and wherein the handle bar is configured to be loaded on the stopper, a receiving space containing a first magnetic body is provided to a lower portion of the stopper, and the handle bar includes a second magnetic body configured to apply an attractive force to the first magnetic body by a magnetic force.