Data annotation method and device and data annotation model training method and device

The invention provides a data annotation method and device and a data annotation model training method and device. The data annotation method comprises the following steps: acquiring a to-be-annotated image set, and determining the annotation type of a to-be-annotated target of each to-be-annotated image; judging whether the labeling category of the to-be-labeled target of each to-be-labeled image has a corresponding data labeling model or not; if yes, performing target annotation on the to-be-annotated image through the data annotation model to obtain a first annotated data set; and if not, acquiring an initial target frame of a to-be-labeled target in the to-be-labeled image, detecting a target edge position in the initial target frame of the at least one to-be-labeled target, and adjusting the initial target frame of the at least one to-be-labeled target according to the target edge position to obtain a second labeled data set. According to the invention, the image which cannot be automatically annotated i