Method and system for dual camera focusing

The invention discloses a method and a system for dual camera focusing, and relates to the technical field of communication. The method and the system can solve the problem of low dual camera focusing speed. The method comprises the steps of allowing a main camera to transmit a focusing control command to an auxiliary camera, allowing the auxiliary camera to determine an auxiliary focusing peak value and a position of an auxiliary motor and transmit the position of the auxiliary motor to the main camera when the auxiliary camera determines that the definition of a shot image reaches a preset value, allowing the main camera to move a main motor to a position corresponding to the position of the auxiliary motor, determine a main focusing peak value and transmit the main focusing peak value to the auxiliary camera, and allowing the auxiliary camera to inform the main camera of focusing completion when the auxiliary camera determines that the main focusing peak value is the same as the auxiliary focusing peak val