A method for implementing a video conference, comprising: each broadband mobile hotspot device participating in the video conference sending a local panorama video image and voice signals to a multipoint conference server; characterized by, the local panorama video image of each broadband mobile hotspot device participating in the video conference is generated by performing image mosaicking processing on video image signals sent by terminal devices participating in the video conference under the broadband mobile hotspot device to which the terminal devices belongs; wherein the broadband mobile hotspot device is a wireless comprehensive application equipment which integrates 3G broadband wireless communication technology and Wi-Fi broadband wireless access technology, the terminal devices accessing each broadband mobile hotspot device through Wi-Fi local area network, and each broadband mobile hotspot device communicating with the multipoint conference server through 3G wireless communication technology; the multipoint conference server sending the received panorama video images and voice signals of each broadband mobile hotspot device participating in the video conference to other broadband mobile hotspot devices participating in the video conference except a sender; and after receiving the panorama video images and the voice signals of the other broadband mobile hotspot devices participating in the video conference, each broadband mobile hotspot device participating in the video conference mosaicking its own local panorama video image and the received panorama video images of the other broadband mobile hotspot devices as a conference panorama video image, and synchronizing the conference panorama video image with the received voice signals, and then sending the synchronized conference panorama video image and voice signals to the terminal devices participating in the video conference under each broadband mobile hotspot device. each broadband mobile hotspot device participating in the video conference sending a local panorama video image and voice signals to a multipoint conference server; characterized by, the local panorama video image of each broadband mobile hotspot device participating in the video conference is generated by performing image mosaicking processing on video image signals sent by terminal devices participating in the video conference under the broadband mobile hotspot device to which the terminal devices belongs; wherein the broadband mobile hotspot device is a wireless comprehensive application equipment which integrates 3G broadband wireless communication technology and Wi-Fi broadband wireless access technology, the terminal devices accessing each broadband mobile hotspot device through Wi-Fi local area network, and each broadband mobile hotspot device communicating with the multipoint conference server through 3G wireless communication technology; the multipoint conference server sending the received panorama video images and voice signals of each broadband mobile hotspot device participating in the video conference to other broadband mobile hotspot devices participating in the video conference except a sender; and after receiving the panorama video images and the voice signals of the other broadband mobile hotspot devices participating in the video conference, each broadband mobile hotspot device participating in the video conference mosaicking its own local panorama video image and the received panorama video images of the other broadband mobile hotspot devices as a conference panorama video image, and synchronizing the conference panorama video image with the received voice signals, and then sending the synchronized conference panorama video image and voice signals to the terminal devices participating in the video conference under each broadband mobile hotspot device.