A scanning method for multiple barcodes is applied in an electronic device. The electronic device loads a tag template, and the tag template has a plurality of detection zones each corresponding to a target barcode and a target barcode type. The electronic device captures a tag image with a plurality of barcode patterns to be detected, and each barcode pattern to be detected has coordinate information on an image coordinate system. The electronic device overlays the tag image with the tag template to determine whether each barcode pattern to be detected is located in one of the detection zones. When the barcode pattern to be detected is located in one of the detection zones and matches the corresponding target barcode type, the electronic device reads the barcode pattern to be detected to obtain a read result.