A mind map sharing system and method for deriving an idea of a designer is disclosed. A mind map sharing server for generating a mind map for generating a predetermined design, generating a node of the generated mind map, collecting ideas related to the design, real-time posting, and sharing through a SNS; Requesting the mind map sharing server to generate a mind map for creating the design, selecting a node family composed of predetermined mutually related nodes among nodes of the mind map generated at the mind map sharing server, A designer terminal for creating a story of the designer for the mind map and uploading the idea to the mind map sharing server, in association with the generated story, an idea composed of the image, drawing, or text of the design; And a designer terminal for generating feedback or correction information on an idea posted and shared in real time by the mind map sharing server and feeding back to the mind map sharing server, Feedbacks or corrections to the map sharing server are selected by the designer, and the selected ideas and modifications are reflected by the designer to correct and improve the idea of the node and complete the mind map.
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