The invention relates to an information prompt method and device. The method comprises the steps: recognizing the key information in a target image, obtaining prompt information corresponding to the key information, and displaying the prompt information, wherein the key information comprises text information, and the prompt information is used for indicating that a user can check the key information, and displaying the key information in a tagging mode. After the target image is obtained, the text information in the target image can be directly recognized and displayed. Therefore, the user does not need to manually input the text information in the target image when the user uses the text information in the target image, and the user can directly use the text information displayed through the method, thereby effectively improving the accuracy of information prompt and the information obtaining efficiency, and effectively improving the user experience.