PURPOSE: A robot arm and a robot system for a surgical operation including the same are provided to easily perform the surgical operation by using a robot arm including capable of coupling one or more surgical instruments, and a robot arm including one or more mobile support stands.CONSTITUTION: A robot arm(32) is composed of a first robot arm(62), a second robot arm(64), a first mobile supporter(52), and a plurality of second mobile supporters(54, 56). The first robot arm is directly attached to a base(140). The second robot arm executes an operation of a pitch direction about the first robot arm. A third robot arm and a fourth robot arm are additionally provided for a direction operation. The first mobile supporter is located in the shortest part of the robot arm. The plurality of second mobile supporters is fixed and coupled to the first mobile supporter. A plurality of surgical instruments(38, 39) is able to be attached to the second mobile supporter.COPYRIGHT KIPO 2012본 발명은 마스터 입력부, 마스터 입력부의 제어에 의해 동작하고, 선단부에 아치(arch)형의 제 1 이동지지부를 포함하는 로봇 암 및 제 1 이동지지부의 일측단부에 연결되는 적어도 하나의 수술기구를 포함하며, 로봇 암은 마스터 입력부의 제어에 따라, 적어도 하나의 수술기구를 제 1 이동지지부의 곡면을 따라 이동시키는 수술용 로봇 시스템을 제공한다.
