The invention relates to an unmanned aerial vehicle battery recognition method and system, an unmanned aerial vehicle and an intelligent battery device. The unmanned aerial vehicle battery recognition method includes the steps that the unmanned aerial vehicle sends a request instruction to the intelligent battery device; the unmanned aerial vehicle receives a recognition activation code generated by the intelligent battery device according to the request instruction; the unmanned aerial vehicle recognizes the intelligent battery device according to the recognition activation code. In the technical scheme, the unmanned aerial vehicle sends the request instruction to the intelligent battery device to acquire the recognition activation code, whether the intelligent battery is an intelligent battery device manufactured by a legal authorized manufacturer or not is judged according to the recognition activation code, the battery can not provide electric energy for the unmanned aerial vehicle or the unmanned aerial vehicle does not respond to external control once the battery is recognized to be an illegal intelligent battery, and thus unnecessary losses brought by an illegal intelligent battery can be avoided.