A stand equipped with a counterbalance unit, comprising: first to fourth links (102, 104, 106, 108) arranged in a parallelogram configuration; first to fourth joints (112, 114, 116, 118), each of the first to fourth joints (112, 114, 116, 118) being connected to each connection part of the first to fourth links (102, 104, 106, 108) respectively and enabling the first to fourth links (102, 104, 106, 108) to be mutually rotatable, wherein the second joint between the second link and the third link is fixed to a holding unit and the second joint and the fourth joint are placed in a diagonal direction; a front link extended from the first link in a direction from the fourth joint toward the first joint, the tip of the front link being configured for mounting a medical apparatus thereon; a counterbalance unit connected to the third joint, the stand further comprising: a first extension link connected to the second joint; a first extension joint placed at an end of the first extension link; a second extension link extended from the first extension joint in parallel with the second link; a second extension joint placed at an end of the second extension link; a third extension link extended from the second extension joint in parallel with the front link; a third extension joint placed at an end of the third extension link; a fourth extension joint placed at an end of the front link; a fourth extension link placed between the third extension joint and the fourth extension joint; and a fifth extension link placed between the first joint and the second extension joint, wherein the first extension link, the fourth extension link and the fifth extension link are in parallel with one another. first to fourth links (102, 104, 106, 108) arranged in a parallelogram configuration; first to fourth joints (112, 114, 116, 118), each of the first to fourth joints (112, 114, 116, 118) being connected to each connection part of the first to fourth links (102, 104, 106, 108) respectively and enabling the first to fourth links (102, 104, 106, 108) to be mutually rotatable, wherein the second joint between the second link and the third link is fixed to a holding unit and the second joint and the fourth joint are placed in a diagonal direction; a front link extended from the first link in a direction from the fourth joint toward the first joint, the tip of the front link being configured for mounting a medical apparatus thereon; a counterbalance unit connected to the third joint, the stand further comprising: a first extension link connected to the second joint; a first extension joint placed at an end of the first extension link; a second extension link extended from the first extension joint in parallel with the second link; a second extension joint placed at an end of the second extension link; a third extension link extended from the second extension joint in parallel with the front link; a third extension joint placed at an end of the third extension link; a fourth extension joint placed at an end of the front link; a fourth extension link placed between the third extension joint and the fourth extension joint; and a fifth extension link placed between the first joint and the second extension joint, wherein the first extension link, the fourth extension link and the fifth extension link are in parallel with one another. a first extension link connected to the second joint; a first extension joint placed at an end of the first extension link; a second extension link extended from the first extension joint in parallel with the second link; a second extension joint placed at an end of the second extension link; a third extension link extended from the second extension joint in parallel with the front link; a third extension joint placed at an end of the third extension link; a fourth extension joint placed at an end of the front link; a fourth extension link placed between the third extension joint and the fourth extension joint; and a fifth extension link placed between the first joint and the second extension joint, wherein the first extension link, the fourth extension link and the fifth extension link are in parallel with one another.