This thesis entitled Croatian Parliament in 1990, according to Novi list, Rijeka reports - on the transition from a socialist to a democratic parliament through a detailed analysis of articles and publications in Novi list, Rijeka will try to show the political situation in Croatia. First of all, the paper will clearly present the development of the parliamentary body through its history in Croatia. The paper will then analyze and list the most important democratic changes that took place in 1989. The paper will then describe the constitutional position of the Parliament of the Socialist Republic of Croatia in accordance with the 1974 Constitution. The action of the Croatian Parliament in the circumstances of the ruins of the socialist system is the next chapter of the work within which the changes made by the Constitution will be treated together with the February amendments to the Constitution and electoral legislation. The paper will then process the elections in general. Following the above, the constitution of the multi-party Parliament on May 30, 1990 will be described in detail through the first sessions of the July Amendments. According to the new Constitution and parliamentary activities since the autumn of 1990, the Parliament represents the last chapter of the paper, which contains a detailed analysis from the daily newspaper "Novi list, Rijeka" in connection with the aforementioned events. The methods used in this paper are the historical method, the method of analysis and synthesis, the inductive method, and the descriptive method.