A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, a transfer channel, a plurality of transfer rollers, an ejecting tray, an ejecting roller assembly, a business card input tray, and a business card pick-up roller assembly. The business card input tray includes a business card support plate, a spring, a separation slice and a position-limiting glide slot. The business card pick-up roller assembly includes a business card pick-up roller, a business card separation roller and a shaft rod. The shaft rod is sheathed by the business card separation roller. The sheet-feeding scanning apparatus is adapted for scanning images of multiple ordinary documents or multiple business cards.