Digging deep into the value of the cultural heritage of Mingxi Nanshan Ruins and continuing the historical lineage is a mission given by history to contemporary people. This paper chooses Mingxi Nanshan Ruins as the research object, combs through the specific framework of emerging information technology, and analyzes the application strategy for digitizing cultural heritage. The digital experience system of Nanshan Ruins in Mingxi is designed by combining emerging information technology with the guidance of immersive psychological experiences for users. The drone close photogrammetry technique is selected to acquire images of Mingxi Nanshan Ruins, and the measurement routes of the drone are carefully planned. Based on the imaging model of a pinhole camera, the reconstruction process of the three-dimensional model of Mingxi Nanshan Ruins is designed by combining the position optimization of the drone image with the geometric constraints of the pole. For the effectiveness of the UAV proximity photogrammetry technique, its positional measurement accuracy, model quantifiability, and positional accuracy were verified, and feasibility assessment and user digital interactive experience were designed to obtain a subjective evaluation of the digital experience system of the Nanshan Ruins in Mingxi. The RMSE-H obtained from the refined route planning is 0.3294cm, the mean value of the error in the plane of the 3D model of Mingxi Nanshan Ruins is 0.022m, and the mean value of the user’s subjective evaluation of the digital experience system is 4.39 points. Using emerging information technology as a guide, we can realize the digital reconstruction of the cultural heritage of Mingxi Nanshan Ruins and provide a new path for its digital protection.
