An autonomous travelling work vehicle includes at least one obstruction sensor and circuitry. The at least one obstruction sensor is to detect an obstruction in a travel route along which the autonomous travelling work vehicle is configured to travel. The circuitry is configured to determine whether the at least one obstruction sensor operates under a proper operation environment and to determine whether a malfunction occurs in the at least one obstruction sensor if the at least one obstruction sensor is determined to operate under the proper operation environment.
