Based on the collection, collation and analysis of practical cases of interdisciplinary geography teaching, four typical relationships between disciplinary knowledge have been identified:“interdisciplinary integration for applied purposes,”“interdisciplinary combination without true synthesis,”“interdisciplinary support for auxiliary application,” and“interdisciplinary fusion through collaborative sharing.”Building on these different knowledge relationships, four distinct interdisciplinary geography teaching models are summarized: the single-discipline linkage model, the multidomain additive model, the multi-discipline co-leading model, and the complex problem-solving oriented model. And the corresponding practical frameworks have been constructed, aiming to provide references for middle school geography teachers to carry out interdisciplinary teaching practices.