Yijun County is located in Tongchuan City, Shaanxi Province, China, and despite sitting on rich agricultural, cultural and tourism resources, its tourism industry is currently still facing the dilemma of insufficient competitiveness of natural landscape and ineffective combination of agriculture and tourism. In this paper, data analysis is used as a research tool, and based on knowledge mapping technology, the integration strategy of culture and tourism knowledge is proposed to construct the correlation relationship between attraction scenery and culture. Under this theoretical framework, the improved SO-PMI algorithm is selected as the screening method of emotion seed words in the text of attraction reviews to design an exclusive emotion dictionary in the field of tourism. Meanwhile, the social network analysis method is used as a research tool for the characterization of the spatial structure and influencing factors of regional cultural and tourism industry integration. Using the designed research method to analyze and summarize the characteristics of the review text of online tourism websites in Yijun County, the distribution of “landscape” theme feature words is more and accounts for the highest proportion, and the weight interval of its first five feature words is [0.021,0.051]. It shows that the construction process of the integration path of agriculture, culture and tourism industry needs to take the local unique attractions and landscapes as the core content and develop around its own characteristics.