Abstract: The Twin Station LEO satellite constellations for regional coverage are suggested in this paper using point coverage simulation method. The constellations have 41° inclination retrograde orbit. The advantage of Twin Station system can be showed in these constellations. The constellations can offer single and double regional continuous coverage to China and the space station . The Inter satellite Links are established among the satellites of the constellation and the satellite links between constellations and space station are also established, which can ensure the data passing continuously among space station, ground station and constellations.