The utility model provides a reflective film, includes basic unit, prism layer, first modified layer and reflection stratum, and prism layer sets up in the basic unit, and first modified layer sets up on prism layer, and the reflection stratum sets up on first modified layer, and one side that first modified layer is close to the reflection stratum is rough surface. The utility model discloses an interlaminar separation's probability takes place for reflective film ability reduction reflection layer, has improved reflective film's environmental suitability, has prolonged reflective film's the effective use life -span.