In the last nine years, Czech republic faced some fundamental political changes, which influenced the shaping image of party system. Velvet revolution represented the end of one-party system and stimulated the emergence of ten political parties, which have been more or less successful at the polls. After the short period of perplexity, in which the pluralistic party system was jeopardised by its atomisation, the parliamentary elections in 1992 brought on consolidation. The stability of central right wing government, which was in power for more than five years, enabled concentration of left-wing opposition and thus simplification of the party system. This trend was confirmed also by the majority of electoral body, which rejected populism of anti-system parties. After untimely parliamentary elections in June 1998, two biggest parties of opposed orientations made an oppositional agreement, which represents a new political element.