An angle grinder includes a housing formed with a handle, a clamping device for mounting a grinding disk, an output shaft for driving the clamping device to rotate, a brushless motor being provided with a motor shaft, a transmission mechanism for transmitting power between the motor shaft and the output shaft, and a circuit board assembly for providing electricity to the brushless motor. The clamping device is disposed outside of the housing and connected with the output shaft. The output shaft is at least partially disposed inside of the housing and connected with the transmission mechanism. The brushless motor is arranged between the transmission mechanism and the circuit board assembly in a direction substantially parallel to the motor shaft, and the motor shaft is disposed along a direction substantially perpendicular to the output shaft.