A method for controlling a boom construction and a tool articulated thereto, said boom construction (4) comprising a first boom (9) and a first actuator (10) controlling the same, a second boom (8) articulated to the first boom (9), and a second actuator (11) controlling the same, as well as a third actuator (7) controlling the position of the tool, wherein in the method: the first actuator (10) is controlled manually; and/or the second actuator (11) is controlled manually and the third actuator (7) is also controlled at the same time automatically to control the position of the tool. For example, the first actuator (10) is controlled by means of a first set point; and/or the second actuator (11) is controlled by means of a second set point; and in addition, the third actuator (7) is controlled simultaneously by using for the control a variable dependent on at least one of said set points. For example, the control system of the boom construction (4) and the tool articulated thereto comprises a control algorithm, which has been configured to determine said variable which is dependent on at least one of said set points.