Diagnosis method of electronic device and device employing method

The invention discloses electronic equipment and a diagnosis method thereof, the electronic equipment comprises a battery and a plurality of functional modules, and the method comprises the following steps: acquiring a first current value consumed by the battery under the condition that the plurality of functional modules are all closed and a voltage value of the battery; any function module in the plurality of function modules is started; acquiring a second current value consumed by the battery after the functional module is started and a voltage value of the functional module; respectively comparing the first current value, the second current value, the voltage value of the battery and the voltage value of the functional module with corresponding reference values to obtain a plurality of comparison results; and obtaining a detection result of the started function module according to the plurality of comparison results. According to the electronic equipment and the diagnosis method thereof, the function modu