This present invention discloses an image guided augmented reality method, comprising the following steps of: obtaining a first conversion matrix of a camera and a marked point; obtaining a second conversion matrix of the eye and the camera; linking the first conversion matrix and the second conversion matrix to obtain a correct position corresponding matrix of the eye to the marked point; and linking the correct position corresponding matrix to a position feature of the marked point to obtain the correct position of the eye to the marked point. The present invention also discloses a surgical navigation method of wearable glasses, used for obtaining the correct position of the operator's eye to the marked point.