A new image fusion rule based on local energy processing of wavelet coefficient is proposed.According to relative size of local energy,the new fusion rule combines the selection and weighted average fusion rule.When the source images′ local energy are different greatly,the fusion coefficient is obtained by the selection rule;otherwise by the weighted average rule.The new fusion rule both preserves the source images′ details and improves the algorithm′s stability.Experiment results show the effectiveness of the new fusion rule.