Green infrastructure is a network of natural and green spaces that consists of various elements, some of which are created naturally, and some by human labor. It is a tool for providing environmental, social and economic benefits. Green infrastructure promotes greater sustainability and cost-effectiveness in line with the European 2020 development strategy, which can act as a catalyst for economic growth by attracting foreign investment and creating jobs, reducing environmental costs and providing human health, and therefore provides a variety of opportunities. mediation. The concept and application of green infrastructure is fast becoming a global plan for conservation and planning at different levels of nation development. Green infrastructure is a strategic approach to building sustainable urban development by solving the problem of current urbanization. Due to the great pressure of the population and the problems of urban geographical resources, which are the current challenges facing our cities and towns, the development and introduction of green infrastructure is of great importance. Green infrastructure provides useful information to decision-makers in urban planning and environmental protection, and at the same time enables the interaction of the environment and urban areas. This paper shows that green infrastructure is certainly something that the world should strive for because of its positive aspects that affect all segments of life. In the Republic of Croatia, green infrastructure has not yet been sufficiently implemented in legislation and it is necessary to educate people and show them how investing in green infrastructure is investing in the environment, the economy and increasing the number of jobs. The aim of this paper is to synthesize data collected from different sources and show what green infrastructure is.