Due to low accuracy of current crop drought detection methods based on remote sensing images,this paper proposed an image detection method based on the coding-decoding neural network.In this meth-od,the deep residual neural network was used as the main network for feature extraction,and multi-scale attention pooling and multi-scale atrous convolution techniques were combined to reduce information loss and enhance effects of feature extraction.By effectively fusing high-level and low-level feature informa-tion,the recognition effect of crop drought boundary improved.The experimental results showed that this method achieved pixel accuracy of 91.05%and average pixel accuracy of 76.19%in drought detection based on remote sensing images,which was obviously superior to other existing models.