Abstract: From the 1850s to 1970s, Modernism emerged and influenced European garden designing, making them show the characteristics of Modernism and gradually move from tradition to modernity. A deep interpretation of the development of Modernism characteristics of European gardens is of great significance to the current studies of landscape architecture historical theories. From the perspective of “event path”, this research takes European Modernism garden events as the path, and based on a large number of original historical documents and monographs, adopts the qualitative research methods of literature research and induction, to sort out and interpret the relationship between European Modernism gardens and social changes in this historical period, sum up the historical features of the styles and forms, analyze the expansion and evolution of the garden design concepts, and excavate the historical causes of the changes in the functions and attributes. It summarizes three Modernism characteristics of European gardens, which are the style change from the complex to the simple, the design concept change from naturalism to rationalism, and the garden functional expansion change from its limitation to the openness.