In this article, I will try to present the mechanism of the collapse of the socialist economic system based on empirical analysis of reforms of the Polish socialist economy. In Poland, there were several attempts to carry out
economic reforms, but in most cases, the experiments failed. I therefore examined why the reforms failed, and why reform ultimately stalled in deadlock. I focused on the stiffness of basic architecture of the “traditional” system, the structural cyclicity of the reforms, the political limits of deepening of socialist reforms, compatibility and interactivity between the platform of the system and functioning mechanisms. Reasons for inability to build an effective system through reform of the socialist economy can be traced back to the rigidity of the platform. The logic wove into the basic architecture withdraw the functioning mechanism, which was partially improved in order to fit the environment, to the original logic. This rigidity of the platform formed cyclicity of the economic reform. Therefore, the system does not function efficiently if the platform is not essentially replaced. However, the basic architecture of the platform is an ideological base of the socialist system, and changing this lead to the denial of socialism. These are the limitations of economic reforms in the socialist system. This inflexibility also caused the collapse of the system and it inevitably led to the systemic transformation.