A robot device that does not need any connection cable for connecting a robot mechanism section and a robot control section to each other. The robot device comprises the robot mechanism section (1) and the robot control section (3). The robot mechanism section (1) comprises an arm and a drive, as well as a connector (2) for receiving control signals and outputting sensor signals. The robot control section (3) comprises a circuit for controlling the robot mechanism section (1) and a connector (6) capable of directly connecting to a servo-amplifier and the connector (2) of the robot mechanism section (1). In addition, a spot where the robot control section (3) is installed constitutes a blind spot out of a range of operation of the robot mechanism section (1) and is adjacent to the robot mechanism section.
