Abstract: This paper introduced the general situation of thethird frontconstruction in Guizhou Province first，and then analyzed the heritages status of thethird frontindustrial buildings in Guizhou Province． A thorough thinking about the value evaluation and the dilemma of protection ofthird frontindustrial building heritages; and finally，it was put forward the method of heritages protection and reuse of thethird frontindustrial buildings in Guizhou Province．