Method and system for providing mobile instant messaging service

The present invention comprising the steps of: requesting registration of the mobile instant messaging service method and to a system, the disclosed mobile instant messaging service method, when the video message file is uploaded from the calling mobile communication terminal messenger service server is a video message file on the VOD server, , who VOD server returns; and access URL that returns the streaming video access URL to the Messenger service servers after saving a video message file according to the registration request Messenger service server callback SMS sent to the destination mobile terminal to the SMS server steps of SMS server sends to enter the callback URL callback SMS message on the basis of the request to the receiving mobile communication terminal, and a messenger service server access URL to the destination mobile terminal connected through a call back SMS message to request and transmitting, VOD server is connected to the contact URL By playing the video message file stored in the called mobile communication terminal belongs to, and including the step of providing the stream, between the mobile communication device by combining a callback SMS technology, VOD technology for mobile instant messaging service system for mobile instant messaging using a mobile communication network is installed by providing a video message from the service, through a wider range of multimedia services, there is an advantage that can meet the needs of service users.