In order to improve productiveness, the liquid temperature should be maken arrive predetermine value as short time as impossible, and controlling accuracy should be ensured at the same time. For the purpose, an optimum scheme of dynamic heating in all process is presented. The power of electronic stove is chosen according began and end temperature,volume of the heated object, for which the paper established the optimum control model of dynamic heating. Based on the model, the system has been manufactured. The experimental results show that the system is better in fast temperature rising,small over adjusting and high precision.