In this paper, the author use solar energy with capillary network systems as the added heating measure of kang . The influence of the system on the surface temperature of Kang and the indoor temperature was researched by experiment. The tested data shows that the average temperature of the head、medium and tail of traditional Kang in a normal room are 65.7°C、43.28°C and 39.82°C. The difference of temperature on Kang surface is higher than 20°C. The average temperatures of the head、middle and tail of the Kang using this system are 51.34°C、38.26°C and 33.79°C. Comparing the two groups of data, we can get the conclusion that the distribution of temperature in the new system Kang is more balance than traditional Kang, which improves the surface comfort of Kang. The average indoor temperature with solar energy auxiliary Kang is 18.5 °C, which is 6.3°C higher than ordinary room. Due to the small thermal inertia of capillary network, the indoor temperature rises quickly when the system is running. It can make quality improvement of indoor thermal environment realtime at will, which greatly improves the thermal comfort of the Kang surface and indoor temperature.