The present invention provides a technology capable of confirming normal operation of obstacle sensors mounted on a work vehicle capable of automatic travel. The sensor management device which judgesnormal operation of one or more obstacle sensors mounted on a work vehicle capable of automatic travel includes: a first notification part that provides a sensor trial activation start notification causing a user to place a target obstacle on detection regions of the obstacle sensors; an obstacle sensor determination part that determines a normal operation of each obstacle sensor, based on detection of the target obstacle, in response to the sensor trial activation start notification; and a second notification part that provides a notification about a result of a determination of the normal operation by the obstacle sensor determination part.