Presented paper deals with the issue of comparative constitutional law in its historical and theoretical dimension. It the fi rst part author explains the essence of the problem, subject of researches and clarifi es rudimentary terminology. The second part comprises synthetic prospect of historical development of comparative constitutional law (mainly contribution of outstanding and widely recognized philosophers and thinkers, but also historic events signifi cant for the evolution) hence Classic Era, through Middle Ages, Renaissance, Age of Reason, Enlightenment, Age of Revolutions till 20th century with its totalitarian regimes, cold war and new global epoch since 1989. The last part is an attempt of obtaining general conclusions from above-described facts and views. General remarks refer to the following issues: motives and premises of development; comparative constitutional law as independent scientifi c discipline due to its unique methodology; evolution of the discipline’s subject; assumed goals and functions of researches; characteristics and diff iculties of analyzed discipline; importance for academic teaching and theoretical scientifi c undertakings; growing meaning and signifi cance for practise: national judicature and legislature, as well as inter – and supranational integration with harmonization of law. General conclusion is that comparative constitutional law becomes more and more important for both academics (teaching, researches) and practitioners (draft acts, law applying) what assures thriving prospects for its future development.