The invention belongs to the technical field of taper angle measurement devices, and particularly relates to a tape angle and angle deviation measurement device. The tape angle and angle deviation measurement device comprises a positioning plate, a fan-shaped measurement block and a resistance-type displacement sensor, wherein a rectangular hole is formed in one end of the positioning plate in a penetrating way along a length direction of the positioning plate, a positioning block is arranged at a bottom surface of the other end of the positioning plate in a sliding way, the positioning blockslides along the length direction of the positioning plate, the fan-shaped measurement block is rotatably arranged in the rectangular hole, an axis of the fan-shaped measurement block is coincided with a rotation axis of the fan-shaped measurement block, the fan-shaped measurement block and the positioning block are arranged on the same straight line, an arc surface of the fan-shaped measurement block is arranged near to the positioning block, the resistance-type displacement sensor is fixedly arranged above the positioning block, the resistance-type displacement sensor is arranged perpendicular to the positioning plate and a measurement head of the resistance-type displacement sensor is connected with the fan-shaped measurement block by a connection rod mechanism.