Аннотация:Urban green infrastructure is a key element of a comfortable living environment, and also – in a broader sense – a precondition for sustainable development. Ecological frameworks in Arctic cities play huge role in maintaining an ecological balance at the urban areas. The paper discovers significance of green infrastructure by providing a number of life-supporting ecological functions on the example of one of the Russian Arctic cities – Kirovsk (Murmansk region). The city environment is quite high polluted by emissions from local industry and transport, and the green spaces operate as a natural absorber. On the basis of data received in the course of own field researches during the summer 2017 and winter 2018, and its processing with GIS-technologies, the role of the green infrastructure of the city and its effectiveness are analyzed, and its ecological functions (such as recreational and hygienic) are estimated. The analysis undertaken in a paper allows to conclude that the green infrastructure development is necessary in order to improve environmental situation in the city and also to raise its aesthetic appeal. This will make city more attractive for local people and tourists, and will contribute to its development taking into account the environmental, economic and social interests of population.