Image multi-label identification method and device

The embodiment of the invention provides an image multi-label identification method and device, which are used for improving the image multi-label identification precision. The method comprises the following steps: acquiring a to-be-detected image; inputting the to-be-detected image into a hierarchical multi-label classification network, and outputting prediction results of N hierarchical labels corresponding to the to-be-detected image through the hierarchical multi-label classification network, wherein the hierarchical multi-label classification network comprises a feature extraction network and a full connection layer, the feature extraction network is used for carrying out feature extraction on the to-be-detected image to obtain a feature vector, the feature vector comprises N groups of feature sub-vectors, the N groups of feature sub-vectors are in one-to-one correspondence with the N hierarchical labels, and the full connection layer is used for carrying out feature extraction on the to-be-detected imag