The thesis is focused on European markets financial instruments directives effective for czech financial market and is divided into three main parts -- a summary of european legislation in the financial markets field, evaluation of the impact of MiFID on the czech financial market and assumption for passing MiFID II with assessing whether new legislation needed. The thesis contains assessments of formation, progress and impact of European law on czech financial market. Evaluation of impacts is not just a description, but the real assessment of impact based on quantitative indicators. Recommendations concerning adoption of a new legislation proceed from lacks and issues found out on czech financial market.