The embodiment of the invention provides an image rain removal model training method, an image rain removal method and equipment, in order to eliminate long rain stripes, a recursive convolution structure is used, feature vectors of an input image with rain stripes are extracted through a plurality of convolution kernels, and vector fusion is carried out, so that the long rain stripes are eliminated. And the fusion feature vector and the feature vector of the input image are added and are output through the LSTM network module, so that long-distance context information can be better linked, and the receptive field can be expanded. And comparing the output feature vector with the feature vector of the corresponding rain-free image, if the comparison result is not a preset result, adjusting the parameter of the recursive convolution module according to the comparison result, and re-executing the operation, that is, through cyclic convolution, enabling the model to learn the internal relation between the cross-stage features, better recovering the details of the image, and improving the image quality. Moreover, the size of the model is effectively reduced, and a good rain removal effect can be achieved on portable embedded equipment and mobile equipment with insufficient memory and computing power.