It is influenced by the weather climate that how many early rice shou ld be sowed,so peasants have difficulty to make dicision. In order to help the p easant to solve this difficult problem, the classified forecast quota decisionma king method was adopted according to the meteorological information, the prod uction cost and so on, the peasant was provided the most superior sowing s eeds quantity decisionmaking, the obvious economic efficiency can be obtaine d in the practical application.