A biaxial antenna using a single motor, the biaxial antenna comprising: a motor; a rotation part configured to be rotated by the motor in a horizontal direction, wherein the rotation part includes a first rotation plate which is configured to move to an upper side or a lower side in a vertical direction according to the rotation of the motor; a shaft coupled to the rotation part; and around which the rotation part is configured to rotate in the horizontal direction; an antenna part coupled to the rotation part and the first rotation plate and a controller configured to control the motor to adjust the degree of rotation of the antenna part in the horizontal direction and the vertical direction, wherein the antenna part includes: an antenna; and a connection part connecting the antenna and the rotation part to each other, wherein the connection part includes: a hinge member hinge coupling the antenna and the rotation part to each other; and a power transfer member connecting the antenna and the first rotation plate to each other to allow the antenna to be rotated in a predetermined angle range through the hinge member with the hinge coupled portion between the antenna and the rotation part as a shaft according to the movement of the first rotation plate, to the upper side or the lower side in the vertical direction, characterized in that the power transfer member includes a guide part and the first rotation plate includes a sliding member inserted into the guide part such that the sliding member is moved along the guide part when the first rotation plate is moved to the upper side or the lower side in the vertical direction. a motor; a rotation part configured to be rotated by the motor in a horizontal direction, wherein the rotation part includes a first rotation plate which is configured to move to an upper side or a lower side in a vertical direction according to the rotation of the motor; a shaft coupled to the rotation part; and around which the rotation part is configured to rotate in the horizontal direction; an antenna part coupled to the rotation part and the first rotation plate and a controller configured to control the motor to adjust the degree of rotation of the antenna part in the horizontal direction and the vertical direction, wherein the antenna part includes: an antenna; and a connection part connecting the antenna and the rotation part to each other, wherein the connection part includes: a hinge member hinge coupling the antenna and the rotation part to each other; and a power transfer member connecting the antenna and the first rotation plate to each other to allow the antenna to be rotated in a predetermined angle range through the hinge member with the hinge coupled portion between the antenna and the rotation part as a shaft according to the movement of the first rotation plate, to the upper side or the lower side in the vertical direction, an antenna; and a connection part connecting the antenna and the rotation part to each other, wherein the connection part includes: a hinge member hinge coupling the antenna and the rotation part to each other; and a power transfer member connecting the antenna and the first rotation plate to each other to allow the antenna to be rotated in a predetermined angle range through the hinge member with the hinge coupled portion between the antenna and the rotation part as a shaft according to the movement of the first rotation plate, to the upper side or the lower side in the vertical direction, a hinge member hinge coupling the antenna and the rotation part to each other; and a power transfer member connecting the antenna and the first rotation plate to each other to allow the antenna to be rotated in a predetermined angle range through the hinge member with the hinge coupled portion between the antenna and the rotation part as a shaft according to the movement of the first rotation plate, to the upper side or the lower side in the vertical direction, characterized in that the power transfer member includes a guide part and the first rotation plate includes a sliding member inserted into the guide part such that the sliding member is moved along the guide part when the first rotation plate is moved to the upper side or the lower side in the vertical direction.