PROBLEM TO BE SOLVED: To provide a population transfer device capable of effectively charging a movable body during traction.SOLUTION: A traction vehicle 100 transfers plural movable bodies 40 traveling by batteries 41. The traction vehicle 100 comprises: communication parts (51, 52) communicating with the plural movable bodies 40; a traction part 60 for towing the plural movable bodies 40; a travel battery 56 serving as a drive source of the traction vehicle itself; a charge battery 57 for charging the batteries 41 for the plural movable bodies 40 during traction travel; and a determination part 54 for determining a travel state when the traction part 60 tows the plural movable bodies 40. The traction vehicle further comprises a control part 58 for communicating with respective movable body 40 by the communication parts (51, 52) and according to the travel state determined by the determination part 54, controlling charging and discharge of the respective batteries 41 for the plural movable bodies 40.SELECTED DRAWING: Figure 2
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