The pension system in Poland is extensive. On the one hand, this provides participants with many opportunities for additional savings for old age. On the other hand, it increases the scope of responsibilities of supervisory institutions. Additionally, citizens expect their funds to be secure. However, the possibilities of controlling these institutions is limited due to constrained human resources. Therefore, it is worth paying attention to the benefits offered by modern technologies, i.e., SupTech (supervisory technology). The author focused on this topic because entities operating within the Polish pension system are required to provide various data regarding their functioning over different periods. The aim of the article was to demonstrate how SupTech can improve the effectiveness of supervision over the pension market. Through a critical analysis of the literature a study of legal acts, the author used the descriptive method and logical inference. This approach allowed him to answer the research question: How does the implementation of SupTech increases the effectiveness of pension market supervision? Among the most important conclusions, it can be indicated that SupTech tools allow for better identification of market risk and reduction of costs associated with fraud detection. They also reduce errors resulting from human factors, while increasing the probability of finding anomalies. The use of modern technologies will contribute to the systematization of processes, allowing supervisory bodies to exercise more effective supervision over the pension market.