Global change has cross-border and multi-scale characteristics and needs the development of systematic data observation program to acquire consistent data so as to meet the requirements of global change research. Requirements of global change for remote sensing data and systematic data observation program of ALOS are dealt with in this paper. Studies show that, with the development of China’s economy and the enrichment of China’s satellite data, it is necessary to implement systematic data observation program so as to lift China’s voice in the aspect of global change and environmental protection.