A survey was conducted to reveal the species composition and distribution of Tetrigid, their choice of and adaptability to habitats in sloping tussock, wetland, forested stream, beach, bushes, broadleaved forest, coniferous forest, and mixed forest in Shiwanshan of Guangxi. The results showed that the species number of the Tetrigrid in the different habitats was in order of bushes > broadleaved forest > sloping tussock > wetland > mixed forest > forested stream > beach > coniferous forest. Different species had different habitat preferences and strict habitat selectivity. Species living in forested stream had a longer pronotum and longer hind wings. Light intensity significantly affected the lengths of pronotum, fore and mid femurs and tarsus of Tetrix japonica. Dew point temperature had a significant effect on the width of the humeral angle and the length of the hind wings and hind femurs, and so did humidity on the length of the tegmina. It is suggested that light intensity, dew point temperature and humidity have significant impacts on different morphological characters of T. japonica, playing a critical role in the diversification of T. japonica.