A flexible device including sensors for shape detection is provided. The flexible device includes a measurement unit including a plurality of bending sensors disposed along at least one edge of the flexible device, and configured to output measurement values sensed by the plurality of bending sensors, and a controller configured to detect a position of at least one curve point on the flexible device by receiving the sensed measurements values from the measurement unit, and to detect at least one bending line of the flexing device according to information about positions of curve points, which are detected on at least two different sides of the flexible device.