A portable charging device includes a case, a power generation module, a storage module, and different types of charging connectors. The power generation module is received in the case, and configured for generating an induced current. The storage module is electrically connected with the power generation module, and configured for storing the induced current generated by the power generation module. The charging connectors are connected to the storage module and protrude from the case for electrically connecting to and charging different types of electronic devices.