The thesis deals with robotization and optimization of production filling lines for filling liquid AdBlue. Before optimization and robotization, the charging line operated at full capacity, resulting in longer waiting times. At full operation, the filling line for the production of 5 and 10 l of AdBlue products required 3 employees, which also reduced the RVC of product. The first part of the thesis presents the theoretical part of robotics in its development, and further presents a detailed list of the existing situation of production lines for filling AdBlue liquids with defined bottlenecks. The second part of the diploma thesis shows the design of new production lines with the introduction of robotics and optimization of filling lines. We used the digital twin of the AdBlue liquid filling production process to perform the optimization and select the final proposal. A new floor plan of the charging line with a robotic cell included and a new work protocol were presented. Calculations are also made based on the possibilities of optimization and robotization of filling lines in combination with the requirements of the company. The expected results of the diploma thesis are increase the capacities of the lines by 15 %, enable the full operation of the lines in just one operation and return on investments in 2 years.