WELDING CONTROL DEVICE, WELDING CONTROL METHOD, AND WELDING CONTROL PROGRAM

A welding control device is configured to control a position control target including at least one of a weld wire used in welding of a weld target or an electrode for melting the weld wire. The welding control device includes: an actual position determination part configured to determine an actual position of the position control target on the basis of a weld characteristic amount detected from a captured image captured so as to include at least the position control target, the weld characteristic amount including at least one of a wire position of the weld wire or an electrode position of the electrode; a target position determination part configured to determine a target position being a target of the actual position corresponding to a weld condition for welding the weld target; and a position control part configured to execute a position control of the position control target to bring the actual position to the target position.