▎ 摘　　要

NOVELTY - The device (100) has reaction chamber that is connected with the external cavity. The buffer space is provided between the outer chamber and the inner chamber. The heater (2) is located in the buffer space. The gas is provided for heating the metal substrate (4) in the environment. The heat reflective plate (3) is located on the outer peripheral side of the heater for reflecting heat chamber in inward direction. USE - Flexible metal substrate device for growing graphene thin film. ADVANTAGE - The flexible metal substrate device for growing graphene thin film yields high quality graphene thin film of large size. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a flexible metal substrate method for growing graphene thin film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the flexible metal substrate device for growing graphene thin film. Heater (2) Heat reflective plate (3) Substrate (4) Quartz lumen (10) Flexible metal substrate device (100)