Currently, the space remote sensing method can be used to meet the demands of social public products. Particularly in the development and study of urban areas, the earth observation technology is possible to be used to solve the common problems. Infrared remote sensing is generally based on the earth observation technology. It can provide helps for the management and construction of ground public products by investigating, analyzing and studying the public facilities in the concept of public products and by individual data acquisition. Usually, the disaster prevention and reduction and the environment protection are most easy to be understood. However, the remote sensing is not merely used for emergency. It is involved with the study of conventional data acquisition and the judgment of associated material attribution. Therefore, by summarizing the characteristics of ``the same object between information and material'' and ``the same object between person and information'' and by using infrared remote sensing technology to census with the minimum data set of point resource system, the application bottleneck in massive data processing can be broken. Thus, the infrared remote sensing and its census are expected to be the productivity essential for the informationized earth.