The integrated application of geostationary meteorological satellite and polar orbit meteorological satellite can maximize their advantages. The East Asian multisatellite integrated precipitation operational software follows Lagrange integration algorithm. The infrared cold cloud motion vectors calculated from geostationary meteorological satellite infrared brightness temperature provide constraints for propagating and morphing of polar orbit meteorological satellite microwave precipitation retrievals. Then the geostationary meteorological satellite infrared information is integrated with polar orbit meteorological satellite microwave information. During the software design, the overall framework of multidata hierarchical management and plugin multiservice unit cooperation are considered to provide the basic guarantee for operational software’s stability, fast data processing capability, future data change, and algorithm update.