This paper evaluates the performance of the fast coupled version of LASG/IAP climate system model FGOALS_gl on simulating the equilibrium state of the Little Ice Age (LIA) climate by giving prescribed external forcing. Analyses on the simulated temperature and precipitation demonstrate the following results: (1) Temperature: The cooling of near surface temperature during the LIA is reasonably reproduced by FGOALS_gl compared with the reconstruction data, indicating that the decrease of solar radiation plays a dominant role in the cooling during the LIA. The annual mean surface air temperature anomalies during the LIA are -0.15℃ and -0.6℃ with respect to the 1860 control run (1860CTL) and the 20th century simulation (20CW). The surface cooling in the Northern Hemisphere is stronger than that in the Southern Hemisphere and is stronger at high latitudes than that at low latitudes. Analysis on the seasonal change suggests that the near surface temperature decrease in summer is stronger than that in winter. The annual mean temperature anomalies are -0.3℃ and -0.6℃ in East Asia with respect to 1860CTL and 20CW.(2) Precipitation: The precipitation in the LIA shows positive (negative) anomalies in the western (eastern) tropical Pacific and the “dipole pattern” in the tropical Indian Ocean. Global land precipitation shows negative anomalies except for Europe and North America. Precipitation change in East Asia is determined by summer precipitation. Compared with 1860CTL, the precipitation increases in North China and decreases in South China during summer, which increases in North China and South China and decreases along the Yangtze River valley with respect to 20CW. 