Pashi house(climbing-lion-type house) is an important residence type in Chaoshan rural area evolved from its traditional rural dwellings,and study on such houses provides effective support for the energy-saving designs of rural buildings.Three typical Pashi houses in Jinpu Town,Shantou City were selected,specifically,onestorey Pashi house,multi-storey Pashi house with Tianjing(small courtyard enclosed by rooms) and multi-storey Pashi house without Tianjing.Ecotect was applied to simulate indoor light environment,and indoor light and thermal environments of 3 typical Pashi houses were compared.The results showed that(a) Grey spaces such as open hall should be maintained;(b) Cooler outdoor air should be introduced into indoor spaces at night to reduce the indoor air temperature;(c) The tradition that Pashi House never has a window facing north should be broken to improve the indoor lighting,and heat insulation structure can be applied for the roof;(d) Top of the Tianjing in a multi-storey Pashi house influences the indoor thermal environment,and plays a less effective role than onestorey Pashi house does in adjusting micro climate of the house. Pashi house (climbing-lion-type house) is an important residence type in Chaoshan rural area evolved from its traditional rural dwellings, and study on such houses provides effective support for the energy-saving designs of rural buildings. Three Typical Pashi houses in Jinpu Town, Shantou City were selected, specifically, onestorey Pashi house, multi-storey Pashi house with Tianjing (small courtyard enclosed by rooms) and multi-storey Pashi house without Tianjing. Ecotect was applied to simulate indoor light environment, and indoor light and thermal environments of 3 typical Pashi houses were compared.The results showed that (a) Gray spaces such as open hall should be maintained; (b) Cooler outdoor air should be introduced into indoor spaces at night to reduce the indoor air temperature; (c) The tradition that Pashi House never has a window facing north should be broken to improve the indoor lighting, and heat insulation structure can be applied for the roof; (d) Top of the Tianjing in a multi-store y Pashi house influences the indoor thermal environment, and plays a less effective role than onestorey Pashi house does in adjusting micro climate of the house.