PROBLEM TO BE SOLVED: To provide an image presenting optical system having a simple configuration and presenting a target image with little distortion due to displacement of an eye point.SOLUTION: This image presenting optical system includes: a display device 4 for displaying an image a reflecting mirror M1 for reflecting a luminous flux from the image that is displayed on the display device 4 a convex lens system L1 for forming a virtual image by the reflection luminous flux reflected from the reflecting mirror M1 and an optical path folding mirror M2 that folds the optical path of the reflection luminous flux that has passed through the convex lens system L1 and presents a virtual image at an image point position O a prescribed distance ahead of the eye point I of an eye. On the assumption that the focal length f of the convex lens system L1 is larger than 800 mm and the image height of the display device 4 is y mm, the focal length f and the image height y satisfy the following conditional expression: 10y
