Combined with regional tectonic setting, the authors bring forward recognition as follows: the forming of the basin was mainly related with the EW-extention of NNE-trending faults under regional SN-compressional stress field, which confirmed that the lineament trend of Indosinian Movement in southeast Hunan Province was NNE; above evolution from marine to continental suggested that a EW-trending uplift formed to south of the study area since late Early Jurassic under regional S-N-compression, and that the study area was in a regional depressive tectonic setting when the basin extended in late development stage. These render the complex extensional or compressional space-time variation of tectonic regime when the Late Triassic-Jurassic basins developed in oft-com:office:smarttags" />South China.