The present disclosure provides a method, an apparatus, a terminal device, and a storage medium for operating an interactive white board. The method includes receiving a file exhibition operation that occurs on a whiteboard application interface, opening a file exhibition window, displaying, in the file exhibition window, a file selected according to the file exhibition operation, and placing the file exhibition window on the whiteboard application interface, receiving a writing operation that occurs on the whiteboard application interface, and according to the writing operation, generating a writing trajectory on the whiteboard application interface.