Abstract: A single-layered thermally adhesive polyimide film; a method for producing the thermally adhesive polyimide film; and a method for producing a polyimide metal laminate produced using the thermally adhesive polyimide film. The single-layer thermally adhesive polyimide film is produced by polymerizing a tetracarboxylic acid dianhydride component and a diamine component, wherein the tetracarboxylic acid dianhydride component includes 2,3,3?,4?-biphenyltetracarboxylic acid dianhydride and 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and the diamine component includes an aromatic diamine compound represented by the following formula (I) as a main component wherein X is O, CO, C(CH3)2, CH2, SO2, S, or a direct bond, and in cases of two or more modes of bonding, each is the same or different; and n is an integer of 0 to 4.