The relationship between El-Nino and the temperature in China is analysed in the paper. The results indicate that the temperature is lower in the spring and summer but higher in the autumn, winter and the following spring than normal during the El-Nino period. The change is caused by seasonal change of the sea surface temperature that is lower in the summer half year and is higher in the winter half year during the period in Kuro-shio current region. Temperature distribution is reverse during La-Nino period.