The article consists of three parts preceded by an introduction and ending with conclusions. The first part presents a synthetic presentation of the structure of the EU regional policy financing system and a list of EU funds and links with EU programs. The second part concerns the low-emission economy and its special role in the concept of sustainable socio-economic development. The third part is the analysis of the financing structure of investments in the field of low-emission economy in regional operational programs in Poland, with particular reference to the West Pomeranian Voivodeship. It contained the structure of financing of low-emission economy within the framework of Regional Operational Programs in all voivodships of Poland. Further analyzes were carried out in relation to the Regional Operational Program for the West Pomeranian Voivodeship for 2014– 2020. The whole is summarized in conclusions – which is the fifth part of the article. The aim of the publication is to analyze the structure of financial support from the European Regional Development Fund (ERDF) under the regional operational programs 2014–2020 (ROPs 2014–2020) in the aspect of low-emission economy. The author’s remark was addressed on the priority of the Low-Emission Economy with particular emphasis on the West Pomeranian Voivodeship.