Purpose: The purpose of the paper is to identify the factors that affect the development of the models of financial market state supervision and to identify the factors that have influenced the evolution of the supervision model in Poland. Methodology: critical analysis of literature, legal provisions and documents. Findings: The completely integrated and the fully dispersed model of supervision are located at the opposite ends of the spectrum. A variety of the hybrid models can be identified between them. Factors that affect supervision organization are both economic and non-economic. Factors that have influenced the Polish model of supervision include political aspects, administration costs and, in due course, also the development of the financial market. Research implications: The variety of state supervision structures, combined with the ambiguity and multiplicity of factors that affect their evolution create a new research challenge. Significant problems in accessing documents have been identified. Originality: The author presents an overview of models of state supervision of financial markets and factors affecting the evolution and structure of supervision. Conclusions drawn from the analysis were used to identify factors that influence the evolution and supervision of the Polish financial market.