Abstract:Based on artificial affecting weather works practice, the occurrence, developmen t, evolution and the route of hail in Heilongjiang Province and the radar echo f eatures are studied by using the current measurement techniques, such as new ge neration weather radar, satellite remote sensing, and the advanced communication and network technique. An artificial hail suppression operation commend syste m was developed, which has a series of functions, such as the warning of hail we ath er, air telephone recording, commanding cannon operation scientifically, storage of operation data and micro control of operation. This system makes the cannon hail suppression operation be scientific and effective.