In response to the high-speed, efficient data adaptive transmission requirements of Space-Earth Integration Network, high-efficiency adaptive transmission control technology is carried out on the basis of broadband satellite communication DVB_S2X standard. It includes high precision channel estimation, low delay channel status prediction and adaptive coding modulation selection switching strategy, to meeting the requirements of adaptive coding modulation technology(ACM). Test verification of efficient adaptive transmission control technology in a typical simulation environment, laying the technical foundation for the construction of subsequent broadband communication satellite systems, star high-speed data transmission systems, and Space-Earth Integration Network. The experimental results show that the method can maintain maximum transmission performance under different channel conditions, greatly improve the spectral efficiency and data throughput.