Bill information identification method, device and system

The embodiment of the invention provides a bill information identification method, device and system. The method comprises the following steps: receiving an information identification request of a to-be-identified bill image; preprocessing the to-be-identified bill image; recognizing bill information in the preprocessed to-be-identified bill image by using a pre-trained bill information recognition model to obtain bill information of the to-be-identified bill image, the bill information identification model being obtained by training according to a preset training set, and the preset trainingset comprising a plurality of sample bill images of different bill types and sample bill information of each sample bill image; and returning a first response message for the information identification request, the first response message comprising bill information of the to-be-identified bill image. Through the technical scheme provided by the embodiment of the invention, the problems existing inan existing bill informat