The diploma work deals with a new structural design of front end loader for the middle line of tractors and its optimization. The work consists of an overview of current front end loaders, including their variants, and their evaluation. This is followed by a kinematics analysis and analysis of forces in the front end loader with a strength calculation of the most stressed parts. In the last step a finite element analysis and optimization of the front end loader is performed and its technical and economic evaluation worked out.