A method for idle charging of a hybrid vehicle according to an exemplary embodiment of the present invention may include: detecting an SOC of a battery and entering times to an idle charge control state; changing an entering point and a releasing point of the idle charge control according to a number of entering times to the idle charge control state for a predetermined period; performing idle charging by forcibly starting an engine when the SOC of the battery reaches the entering point of the idle charge control; and stopping the engine when the SOC of the battery reaches the releasing point of the idle charge control state as the idle charge is performed.