In order to reduce the cost of robotic arm, the invention provides a robotic arm, which includes an arm member having a first pivot connection portion, a locating member affixed to the arm member, a sliding member movably mounted at the locating member, a stop member affixed to the sliding member, a wrist member having a second pivot connection portion pivoted to the sliding member and a third pivot connection portion movable relative to the second pivot connection portion, and a driving device including a body member pivoted to the first pivot connection portion and an extension member pivoted to the third pivot connection portion of the wrist member and movable relative to the body member. Using the locating member, the sliding member, the stop member and the wrist member to match with the driving device, the robotic arm achieves the effect of moving and swinging and cost reduction.