The invention provides a pair of smart AR (augmented reality) glasses based on virtual integration of two-dimensional images. The AR glasses comprise a parameter information input unit, a label information scanning input unit, a clothes analog computing unit, a parameter comparison unit, a two-dimensional image collecting unit, a CPU (central processing unit), a data storage unit, a data taking unit, a virtual integration unit and a display unit. The working principle of the AR glasses is characterized in that the two-dimensional images are collected by the two-dimensional image collecting unit, the collected images are further processed by the CPU, all layers are attached and matched by the virtual integration unit finally, and a virtual fitting image is produced; besides, actual clothes parameter information is compared with human body parameter information, so that a user knows the fitting degree of chose and purchased clothes conveniently. With the adoption of the smart AR glasses, the user chooses and purchases clothes more conveniently and more intelligently, time of the user is saved, and realness of virtual fitting is improved.