Abstract: The application exploration of landscape architecture heritage protection course teaching, based on geographic information system (GIS) technology, promotes interdisciplinary integration, stimulates students’ interest in learning, strengthens their ability of data analysis and processing. Meanwhile, it cultivates students’ preception of overall protection of heritage resources, and highlights the inseparable relationship between cultural heritage resources and ecological environment. Thereby, on the basis of analyzing the relationship between GIS and landscape architecture teaching, this paper discusses the application and thinking of GIS technology in the teaching of the undergraduate course of landscape architecture heritage protection. It illustrates the necessity of GIS technology application in the teaching of this course through the practical teaching case of cultural heritage corridor, and probes into the application of new technologies and methods to provide reference for the reform of the teaching course of landscape architecture heritage protection.