Third call processing method and device based on Windows Mobile operating system

The invention discloses a treatment method of a third line of call on the basis of a Windows Mobile operation system, which is applied to a dual-card and dual-standby mobile phone. The method comprises the steps that: the status information of a wireless communication module presently corresponding to a mobile phone is memorized, a call establishment message of an incoming call sent by a corresponding wireless communication module is received by a wireless interface drive module of the mobile phone, the present phone status is determined as a two-line communication status according to the acquired status information of the wireless communication module, and call rejecting information is sent to the corresponding wireless communication module. The invention also discloses a treatment device of the third line of call on the basis of the Windows Mobile operation system; the treatment method and device of the invention can conduct continuous treatment of the third line of call without needing to modify the application modules of Microsoft phones, thus maintaining the stability of the Windows Mobile operation system.