Voltage supply method for CPUs in mobile terminals and mobile terminals

The invention provides a voltage supply method for CPUs in mobile terminals and the mobile terminals. The voltage supply method for the CPUs in the mobile terminals includes the steps that the voltage grades of the CPUs in the mobile terminals are obtained; corresponding voltage is supplied to the CPUs in the mobile terminals according to the voltage grades of the CPUs in the mobile terminals. Before the voltage is supplied to the CPUs in the mobile terminals, the voltage grades of the CPUs in the mobile terminals are firstly obtained, and then corresponding voltage is supplied to the CPUs in the mobile terminals according to the obtained voltage grades of the CPUs in the mobile terminals, so that proper voltage can be provided according to the requirements of the CPUs in different mobile terminals, power consumption of the CPUs can be lowered, and stable work of the CPUs can be guaranteed.