Abstract: With the development of time and increasing collection of historical materials, Three-Line Construction has become a hot spot in academic research. More detailed researches need to be conducted in Panzhihua, one of the plot cities in Three-Line Construction. Historical materials are the precondition of history study. The existing historical materials consist of printed records, material evidence and oral historical materials. The collection and application methods of the related historical materials are of great significance to the study of the history of the Three-Line Construction of Panzhihua