The spatial and temporal distribution of temperature humidity index (THI) and wind chill index (K) as well as monthly climate suitability were analyzed and the climate suitability period were evaluated based on geographic information system technology and climate suitability analysis models such as THI and K. Results showed: The monthly THI of Qinling increased gradually from central to north and south and from west to east; the monthly K trend of Qinling was consistent with THI; there was significant differences in climate suitability period of Qinling. In general, the annual suitable climate period became shorter gradually from south and north to central and from east to west; the longest climate suitability period is seven months, covering an area of 11 242.31 km2 or 19.50% of the total area; annual unsuitable climate area was located in Taibaishan hilly regions, which occupied 86 km2, less than 0.2% of the region’s total area and the climate suitability period decreased with the increasing altitude. It was suggested tourism should be arranged between April and October and landscape planning and construction should be carried out at the tourism scenic spots below the elevation of 2 395 m.