Abstract: A text reading guide method for an electronic device including a display screen and a storage unit is provided. The storage unit stores a database recording a number of feature values of images and a plurality of coordinates. Each coordinate corresponds to a display region of the display screen and is associated a corresponding feature value. The method includes the following steps: capturing a real-time eye image of a user; extracting an eye image feature value from the captured eye image; searching the database to find the eye image feature value of the user matching the extracted eye image feature value, and retrieving the coordinates associated with the eye image feature value; determining the display content on the display region corresponding to the retrieved coordinates; and displaying the determined contents in a highlight fashion on the display screen. An electronic device using the method is also provided.