In the context of the Ministry of Education’s requirements for the construction of first-class undergraduate majors, and according to the standards of the construction of first-class majors in landscape architecture in agricultural and forestry colleges and universities, the renewal of the curriculum system must focus on higher requirements. Tracing back to the development characteristics of landscape architecture majors in domestic agricultural and forestry colleges, based on the requirements of the documents related to the construction of first-class courses, the characteristics and requirements of "forestry majors" and "architecture majors" are sorted out. On this basis, the demand-oriented professional curriculum system is constructed in accordance with landscape architecture faculty teams, teaching resources, and the professional orientation and learning situation of training programs of Anhui Agricultural University. The questionnaire data of the professional curriculum system is analyzed by the TOPSIS entropy weight method, and the optimal ideal solutions of the overall curriculum system, the main curriculum system and the innovative practical curriculum system are obtained. The curriculum system of landscape architecture with "landscape engineering" and "landscape floriculture" as the "linkage dual-core" is further established. In order to optimize the curriculum system, it is intended to achieve the overall "new agricultural science" characteristics combined with a multidisciplinary intersection of diversified teaching requirements, cultivate landscape architecture talents who lead the industry practice and research innovation in the new era, meet the demand orientation of providing landscape construction research talents for building high-quality living environment, realize the cultivation goal of landscape architecture specialty in Anhui Agricultural University, and cultivate high-quality landscape architecture talents in the new era. At the same time, it also provides a reference for other colleges to construct the curriculum system of landscape architecture major in agricultural and forestry colleges.