Abstract: In this paper, a new mobile augmented reality system based on two-dimensional code is proposed.This system is designed to compensate the shortcoming existing in current mobile augmented reality applications that only a small number of objects can be identified and tracked in realtime, hence they can not be used in large-scale scenes for mobile users.Utilizing functions of mass content coding and rapid positioning of the two-dimensional code, the identification and tracking of objects in large-scale scenes are achieved.Additionally, to reduce the delay of downloading 3D models from the server, 3D models are stored in a local SQLite data container on mobile device and used for rendering locally.Experimental results show that the proposed method effectively identified a large number of objects and achieved fast tracking.Furthermore, the proposed method does not require server to participate in the fusion of virtual scenes and real scenes.