The article focuses on the reform of the Polish Senate. The main advantage of a bicameral parliament is the possibility of gaining dominance by different political parties in both chambers. Thanks to that the Senate can act as so called „chamber of reflection”. Meanwhile in Poland combination of elections to the Sejm and the Senate makes the party winning the elections to the Sejm also winning the elections to the Senate. Therefore it is necessary to consider the separation of the elections to this two chambers of parliament as well as change of the electoral law to the second chamber. These changes should lead to the transformation of the Senate to the „chamber of regions”. Thus strengthening the importance of the Senate which will begin to perform the functions of the „chamber of reflection”. Moreover thanks to the modifications suggested inhabitants of regions with less population will obtain greater impact on current politics.