Abstract: The present invention relates to a wearable smart optical system using a hologram optical element (HOE), which is manufactured as a see-through type that can acquire an image while securing an external view, and which displays a converged image to be viewed by the eye in a state in which an HOE image display part is arranged to be parallel with the eye, by enlarging, to a size corresponding to a preset angle of reflection, the image represented by an incident light signal, the HOE image display part being configured as a wavelength-selective transparent reflective body manufactured as a film by recording so as to perform asymmetrical reflection of aligning, with the center of the eye, only a wavelength predefined for the HOE, wherein any one of a laser illumination source, organic light emitting diodes, and an LED RGB illumination source is used as a light source for discharging the incident light signal.