The indoor air quality is closely related with the human health. The environmental research group investigates the indoor environment in Shenzhen and Guangzhou of Guangdong Province at the beginning of August this year. From the monitored data we can find out the indoor environmental quality of the house is better. The houses that we spotted check are template housing, roughcast housing and house. We can know that the indoor environmental quality of template housing and housing is better from the data because the template housing is built with better renovation materials and the resident's house just live for one year, people's consciousness in environment is strong. Some usual air pollutants can’t be measured out or the concentration is very low in roughcast housing. From the data, the author can know that the indoor pollutant mainly comes from renovation materials but not construction material. However, that ammonia mainly comes from the construction material because of the concentration of ammonia in the house is relatively low but the template housing and the roughcast housing is relatively high.