The theme of this article is analysis of disruption in production process at the chosen example in the context of improving the implementation of the production plan. The work contain analysis in the chosen production company over the year. The article presents the methodology of work with the discussion of the obtained results. The most important element in this work was to exactly analyse and correctly diagnose disruptions in the departments, weeks and production lines to get right conclusions which allow to propose practical and effective improvements which eliminate disruptions in production process.