This application discloses a data processing system, an object detection method, and an apparatus thereof, and is applied to the artificial intelligence field. In this application, a second feature map generation unit introduces shallow texture detail information of an original feature map (a plurality of first feature maps generated by a convolutional processing unit) into a deep feature map (a plurality of second feature maps generated by a first feature map generation unit), to generate a plurality of third feature maps, and the third feature map including the shallow rich texture detail information is used as entered data on which a detection unit is to perform target detection.