The Pudacuo area of Shangri-La National Park is located in the core area of the “Three Parallel Rivers” World Natural Heritage Site. Its natural environment is closely connected with multi-ethnic cultural resources, and the study of landscape versatility is typical. After in-depth clarification of the multi-functional characteristics of the landscape in the Pudacuo area and its evolution process, this study conducted a comprehensive assessment of 11 landscape functions, including agricultural production, landscape culture, landscape bearing and regulation services, and explored the multi-functional changes and trade-off synergy of the landscape in Pudacuo area from 2006 to 2022. The survey results revealed: ( 1 ) The land use in the Pudacuo area shows a trend of diversification and ecologicalization, and the land use of various ecosystems is in a state of dynamic balance. (2) Between 2006 and 2022, the average value of landscape multifunctionality in the area was 5.97, with a change range of approximately 1.67 %. ( 3 ) Among the landscape functions, “climate/body regulation-carbon sequestration”, “biodiversity-carbon sequestration” and “biodiversity-habitat quality”show a significant synergistic relationship, while “climate / body regulation-food supply”, “climate / body regulation-water production capacity” and “climate / body regulation-water purification” have obvious trade-off relationships. ( 4 ) The development of landscape service functions in Pudacuo area gradually becomes more harmonious. This confirms that ecological management of Pudacuo area has a positive effect on its landscape multifunctionality. For future development, it is recommended to further strengthen the sustainable construction of the landscape to promote the coordinated development of the “production-life-ecology ” function in the area and its surrounding communities.