Abstract: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.