To optimize space weather research and information services, it is important to establish a comprehensive system that enables us to analyze observation and simulation data in an integrated manner. For this, we recently constructed a new computing environment called the "Space Weather Cloud Computing System" of the National Institute of Information and Communications Technology (NICT). Currently, the Space Weather Cloud contains a high performance computer, a distributed mass storage system using the Grid Data Farm (Gfarm) technology, servers for analysis and visualization of data, a job service based on the RCM (R&amp
D Chain Management) system, servers for Solar-Terrestrial data Analysis, and the Reference System (STARS).