A method for masking sensitive data based on image recognition comprises: extracting initial image features of a to-be-processed image in multiple dimensions of features; reducing dimensions for the initial image features in the multiple dimensions of features, to obtain image features of the to-be-processed image in at least one dimension of sensitive data masking; identifying sensitive features of the to-be-processed image based on the image features in the at least one dimension of sensitive data masking; masking the sensitive data for the sensitive features of the to-be-processed image. The method for masking sensitive data based on image recognition realizes the sensitive data masking for images based on image recognition, and the efficiency of sensitive data masking is relatively high.