The adapter and the charge control method is disclosed. The adapter includes a power conversion unit and a voltage feedback unit, a current feedback unit, a power adjustment unit. Power adjusting unit may comprise an output stage connected to the input terminal and the power conversion unit connected to the output terminal of the output stage and a current feedback unit of the voltage feedback unit. Power adjustment unit is adapted to receive a voltage feedback signal and current feedback signals the voltage feedback signal reaches the output current is the target current of the second is the display or or current feedback signals and the output voltage of the adapter has reached the target voltage second adapter to indicate that the are used to stabilize the output voltage and output current of the second adapter. The adapter can improve the safety of the charging process.