An online mission gaming device comprises: a housing having a receiving space in which at least one article is received for performing a plurality of missions; at least one camera unit for capturing an image of the receiving space; an article transporter capable of transporting the at least one article; a communication unit for receiving a control signal of the article transporter from an external device; and a control unit. In particular, the control unit is configured to: control the communication unit such that the communication unit transmits the image captured in the at least one camera to the external device; adjust the article transporter according to a control signal of the article transporter, received from the communication unit; control the camera such that the camera captures an image of the at least one article that has been transported by the article transporter and completed a mission; determine whether the mission is successful, by using the captured image of the article; and control the communication unit such that the communication unit transmits the determined mission result to the external device.