To provide a heat fusion-bonding propylene polymer laminated film which is excellent in low temperature heat sealing properties at a high speed under a low pressure, lamination strength, blocking resistance, etc., and suitable for packaging material.

In the laminated film, on one side of a heat fusion-bonding layer obtained from a propylene polymer composition (C) of a propylene-α-olefin copolymer (A) in which a peak temperature (Tp) obtained from a crystal fusion curve based on DSC is 110-140°C, and the difference (Te-Ts) between a fusion starting temperature (Ts) and a fusion ending temperature (Te) is below 45°C and an ethylene-α-olefin copolymer (B) having a density of 0.865-910 g/cm3, through an intermediate layer obtained from the copolymer (A), a laminate layer obtained from an olefin polymer composition (E) of a propylene polymer (D) and the ethylene-α-olefin random copolymer (B) is provided.