Resistances to pre-harvest sprouting (PHS) in eight different early indica rice varieties were investigated after their panicles were sampled from 16 days after pollination (DAP) onwards and treated in wetting condition. The result indicated that there was great variation in resistance to PHS among the varieties, which could be reasonably reflected by the treatment of 6d panicle-wetting for the panicles of 22 DAP. The exogenous hormone treatments to panicles, applying gibberellin acid (GA 3) and abscisin acid (ABA) solutions in 3 different concentrations, showed that 30 mg/kg concentration of GA3 could obviously promote the panicle germination and that ABA could restrain panicle germination even though the effect varied considerably for the different varieties.