Lithium battery tool power-on protection method and system

The invention provides a lithium battery tool power-on protection method and system, and the method comprises the steps: configuring an energy storage capacitor in a lithium battery power-on loop, and presetting a power-on protection state voltage detection threshold value; obtaining the power-on voltage of the current lithium battery tool in real time, and judging whether the power-on voltage is smaller than the power-on protection state voltage detection threshold value or not; if the power-on voltage detected in real time is smaller than the power-on protection state voltage detection threshold value, a corresponding power-on protection state is started, and a removing strategy is configured in advance; and when the battery pack is reloaded into the lithium battery tool, the lithium battery tool is in a power-on protection state, and whether the power-on protection state is released or not is judged according to the on-off state of the lithium battery tool and a release strategy. 本发明提供了一种锂电池工具上电保护方法和系统，所述方