A necessity for an automation in a cell production line is recently increasing and a dual arm robot draws an attention as a solution because it has a flexibility and it can work in a similar way with a human. This paper presents a design methodology of a dual-arm robot and its application to the cell production line for packaging and assembling of IT products like cell phone, television and so on. A requirement is suggested in designing a dual arm robot and the structure of software framework to operate dual arm robot is also proposed. The design procedure of a robot cell production system is discussed and the concept of robot cell production line in packaging cell phones is described.