A hardware merchandise carrying device is adapted to hold at least one hardware merchandise that has a positioning portion, and includes at least one holding seat that has a main seat body, two elastic arm members, and first and second connecting units. The elastic arm members are adapted to be removably coupled to the at least one hardware merchandise. Each elastic arm member extends from the main seat body, and has an engaging portion adapted to engage the positioning portion of the at least one hardware merchandise. The first and second connecting units are disposed on the main seat body. The second connecting unit is adapted for engaging the first connecting unit of another holding seat.