This paper utilizes intercultural knowledge test papers and regression analysis to explore the intercultural cultivation value and economic value of Japanese language education on the basis of the new college entrance examination foreign language policy. Then it provides an overview of the LISREL model, discusses the advantages of the LISREL structural equation, and describes the process of model construction. Variables such as family factors, cultural interest, learning environment, and foreign language learning expansion are selected and the relationships between them are verified. It is analyzed that after the implementation of the foreign language policy of the new college entrance examination, 64% of the students’ intercultural knowledge scores are in the 85-100 range, and their intercultural knowledge aspect is at a high level. Japanese listening and speaking ability had a significant effect on starting year salary, demonstrating the better economic value of Japanese language education. Family factors, learning environment, and cultural interest can all have a significant impact on students’ foreign language learning.