<p>The present invention relates to a welding robot capable of straight and curved operation through multi-axis control. According to an embodiment of the present invention, provided is a welding robot which comprises: a base frame; a first moving unit coupled to be laterally moved in an upper side of the base frame; a second moving unit coupled to be lifted in a height direction in one side of the first moving unit; a rotational member rotationally coupled to a front side of the second moving unit; an arm unit coupled to be moved in a front and rear direction in one side of the rotational member; and a welding unit rotationally coupled to an end of the arm unit.</p>
