A flexible bar-shaped camera is applied to an intubation device and placed inside an endotracheal tube. The intubation device has a display screen. The flexible bar-shaped camera includes a main body. The endotracheal tube has a tube front end and a first curved end. The main body has a camera end, a connecting end, and a second curved end. The camera end is located at the second curved end. After the flexible bar-shaped camera is placed inside the endotracheal tube, the second curved end touches the tube front end, and the second curved end situates in the first curved end, such that the camera end is parallel to the display screen.
