In this thesis, a platform for handling suspended loads based on the Stewart mechanism is designed. The designed platform is used inside the work hall where the entry of personnel should be minimized due to the presence of nuclear radiation. It will perform the tasks of manipulation and positioning of loads with appropriate positional accuracy and speed, using remote control. The paper begins with a general review of the literature and recommended forms of solutions for the given requirements. Then existing solutions, from specialized manufacturers, with similar operating parameters are found. Based on the existing ones, a conceptual solution and an orientation model of the given mechanism is formed. Prior to construction itself, in order to determine the possible positions of the platform, a kinematic analysis is carried out in MatLab. By knowing the kinematics, the positions that are considered to load the actuators the most are determined, and a static analysis is carried out in these positions. Based on the results of the static analysis, linear actuators are selected, and the design and selection of other standard parts is started. The platform is completely constructed and subjected to FEM analysis in the "Autodesk Inventor" software package. In conclusion, the necessary technical documentation is created.