Huizhou architecture is the most important Chinese ancient architecture. Being a traditional architecture, Huizhou architecture has always maintained a unique artistic style of elegance, simplicity, richness, and integration. Huizhou landscape is an essential embodiment of Huizhou culture. The landscape and pattern of Huizhou villages are the external manifestations of Huizhou culture symbols. This architecture needs to be preserved using multimedia technology and geographic information system. This paper uses these systems to extract the landscape image and develop three-dimensional Huizhou village’s modeling methods with automation, high efficiency, and low cost. It has realized the functions of landscape information query, high-dimensional measurement, terrain analysis, visibility analysis, and virtual roaming of Huipai village. This modeling has specific promotion effects on landscape spatial analysis, landscape planning, ecological protection, natural and cultural inheritance, and tourism development.

In order to explore the suitability evaluation of regional construction land in mountainous villages and towns, a method based on GIS technology is proposed. Supported by GIS and RS technology, the Delphi method is used to determine the natural, socioeconomic, and ecological security factors affecting the ecological suitability of regional construction land in mountainous villages and towns, and analytic hierarchy process is used to calculate the weight of relevant influencing factors. Following the principle of giving priority to ecological protection, a set of ecological suitability evaluation model system and method of regional construction land in mountainous villages and towns are established, based on which the basic ecological control areas of mountainous villages and towns in the study area are divided, so as to provide suggestions for rational and effective planning of land resources in mountainous villages and towns. The experimental results show that the K-means clustering method is divided into five categories: the most suitable land, the more suitable land, the basically suitable land, the unsuitable land, and the unavailable land. Finally, according to the suitability grade system of construction land, it is reclassified, the unsuitable land and unavailable land are divided into basic ecological control areas, the most suitable land and more suitable land are divided into construction control areas, and the basically suitable land is listed as ecological buffer areas. It is proved that the basic ecological control area determined by the model method is basically consistent with the current basic ecological control line of a city, which shows that the model is practical and scientific.