A multi-channel communication terminal, the multi-channel communication terminal supporting at least two communication channels wherein; a first communication channel is established by a first service provider system, and configured to acquire a subscriber identity information, wherein the subscriber identity information is used for providing service sharing to the multi-channel communication terminal of a service provided by a second service provider system, and said subscriber identity information is assigned by a remote server; and a second communication channel is established by the second service provider system according to the subscriber identity information, and configured to acquire the service provided by the second service provider system; wherein the multi-channel communication terminal further comprises: a first communication module; a second communication module; and a communication management unit, configured to: dynamically load, using the first communication module and over the first communication channel, the subscriber identity information assigned by the remote server; acquire, using the second communication module and over the second communication channel, a service provided by the second service provider system; and a local SIM card inserted on the multi-channel communication terminal may be called by the remote server such that the multi-channel communication terminal may share the local SIM card with other subscribers; a remote SIM card calling unit configured to simulate a read-and write process of the local SIM card; such that when other devices call, using the remote server, the service of the local SIM card and shared by the multi-channel communication terminal, the corresponding authentication result is returned to the remote server over the first communication channel thereby implementing remote call of the local SIM card; wherein the multi-channel communication terminal pre-uploads information of the local SIM card, IP address and the type of the shared service to the remote server and scheduling the remote server to register the local SIM card information as a SIM card subscribing for a service provided by the corresponding service provider system. a first communication channel is established by a first service provider system, and configured to acquire a subscriber identity information, wherein the subscriber identity information is used for providing service sharing to the multi-channel communication terminal of a service provided by a second service provider system, and said subscriber identity information is assigned by a remote server; and a second communication channel is established by the second service provider system according to the subscriber identity information, and configured to acquire the service provided by the second service provider system; wherein the multi-channel communication terminal further comprises: a first communication module; a second communication module; and a communication management unit, configured to: dynamically load, using the first communication module and over the first communication channel, the subscriber identity information assigned by the remote server; acquire, using the second communication module and over the second communication channel, a service provided by the second service provider system; and a local SIM card inserted on the multi-channel communication terminal may be called by the remote server such that the multi-channel communication terminal may share the local SIM card with other subscribers; a remote SIM card calling unit configured to simulate a read-and write process of the local SIM card; such that when other devices call, using the remote server, the service of the local SIM card and shared by the multi-channel communication terminal, the corresponding authentication result is returned to the remote server over the first communication channel thereby implementing remote call of the local SIM card; wherein the multi-channel communication terminal pre-uploads information of the local SIM card, IP address and the type of the shared service to the remote server and scheduling the remote server to register the local SIM card information as a SIM card subscribing for a service provided by the corresponding service provider system. a first communication module; a second communication module; and a communication management unit, configured to: dynamically load, using the first communication module and over the first communication channel, the subscriber identity information assigned by the remote server; acquire, using the second communication module and over the second communication channel, a service provided by the second service provider system; and a local SIM card inserted on the multi-channel communication terminal may be called by the remote server such that the multi-channel communication terminal may share the local SIM card with other subscribers; a remote SIM card calling unit configured to simulate a read-and write process of the local SIM card; such that when other devices call, using the remote server, the service of the local SIM card and shared by the multi-channel communication terminal, the corresponding authentication result is returned to the remote server over the first communication channel thereby implementing remote call of the local SIM card; wherein the multi-channel communication terminal pre-uploads information of the local SIM card, IP address and the type of the shared service to the remote server and scheduling the remote server to register the local SIM card information as a SIM card subscribing for a service provided by the corresponding service provider system.