A battery pack with massage function includes a case, at least one battery body, an electrical connector, a switch device, at least one moving body, and an electrical actuator assembly. The case has an accommodating space define therein and a through hole communicating the accommodating space. The battery pack is disposed in the accommodating space for supplying electrical power. The electrical connector is disposed on the surface of the case and electrically connected to the battery pack, wherein the electrical connector is for connecting an electrical receiver of an electronic device for supplying electrical power to the electronic device. The switch device is electrically connected to the battery pack. And the switch device is selectively switched to a close-circuit-state or an open-circuit-state. The moving body is capable to move reciprocally via the through hole. The electrical actuator assembly is connected to the battery pack via the switch device； when the switch device is switched to the close-circuit-state, the electrical actuator assembly outputs a driving force to move the moving body reciprocally.一種具有按摩功能之電池裝置，包含一殼體、至少一電池芯、一電接頭、一切換開關、至少一移動體及一電致動組件。殼體具有一容置空間，且殼體具有連通容置空間之通孔。電池芯設置於容置空間，用以提供電力。電接頭設置於殼體表面，且電性連接於電池芯。電接頭用以連接一電子裝置之電連接器，以傳送一電力至電子裝置。切換開關電性連接電池芯，且可選擇地被切換為通路或是斷路。移動體可往復地於該通孔中移動。電致動組件透過切換開關電性連接於電池芯，而於切換開關被切換為通路時產生一致動力，以往復地推動移動體。
