Roller indentation width detection device and method

The invention discloses a roller indentation width detection device and method. The roller indentation width detection device comprises a detection base, a detection platform, two supporting components, a movable pressing seat and a power component, wherein the detection platform is arranged on the detection base, a horizontal detection plane is arranged on the upper surface of the detection platform, the detection plane is used for laying detection paper, the detection base is provided with the two supporting components which are oppositely arranged at the two sides of the detection platform,the movable pressing seat is movably connected to the supporting components and can move along the supporting components in the vertical direction, the movable pressing seat is used for fixed connection with a to-be-detected roller, the power component is arranged on the detection base and is connected with the movable pressing seat, and the power component is used for driving the movable pressing seat to move so as to a