Abstract: Experiments of application effect of “Shidijia” soil conditioner in acid paddy field Datian County. The results showed that soil pH, available P and available K contents of soil conditioner treatment were increased, the soil pH increases 0.3 units, improving effect was obviosly;and yield raised 58.3 kg every 667 m² than control treatment, increased by 10.4%, the difference reached significant level (P<0.05). Suggesting that “ShidiJia” soil conditioner could be popularization and application in local acidic soil.