The invention discloses a rescue method and device for an unmanned vehicle. A specific implementation way of the method comprises the following steps: collecting vehicle condition information of the unmanned vehicle; judging whether the unmanned vehicle has automatic driving ability or not; if not, setting the vehicle driving mode of the unmanned vehicle into a manual driving mode and further judging whether the unmanned vehicle has the driving ability or not in a manual driving mode; and responding to judgment that the unmanned vehicle does not have the driving ability in the manual driving mode, collecting membership information of the unmanned vehicle and transmitting the vehicle condition information and the membership information to a cloud server for supporting the unmanned vehicle. According to the implementation way, effective vehicle rescue is achieved.