Seeding target is mainly stratocumulus in south of China.The simulation of the seeding using One deimension Time varing Cumulus Interactive Model is presented,and the qualitative verification on the effect of cummulus seeding is given through the examples of six seeding operations with plane in the northwest part of Hubei province in the summer of 1995.By studying the seeding mechanism of the cloud,the effective seeding technology,and comparing practical operation with no seeding simulation and with seeding simulation,some conclusions are drawm.