Satellite internet efficient and reliable transmission method based on segmented proxy

The invention discloses an efficient and reliable satellite internet transmission method based on segmented proxy, and mainly solves the problems of poor performance and reliability in satellite communication in the prior art. According to the implementation scheme, segmented QUIC connection of a geographical rasterization low-orbit satellite network is established, and a connection mapping relation is added to a top-crossing satellite; the satellite covering the terminal user judges the state of the connection by checking the message sent by the terminal; the overhead satellite packages and transmits the message according to the data transmission state and the connection mapping relation, and returns an instant response to the source terminal as the identity of the destination terminal; and when the overhead satellite moves to a position which cannot keep covering the current grid, migrating the service information to the satellite to be taken over for switching and continuing data transmission until the sou