In order to solve the current situation of Chinese children??s weak awareness of marine culture education, through the analysis of marine cultural elements and current situation of marine culture education for children and children??s psychological characteristics of amusement facilities, the application of marine cultural elements in the specific product design is explored to promote the spread of marine cultural elements. An extraction method of marine cultural elements based on user behavior and scenario-based design is proposed. By analyzing the user behavior of fishermen working in the sea, the relevant ocean elements are extracted from the display of fishermen??s behaviors at sea. Finally, taking children??s play facilities as an example, the user behavior and situational demand map of the children??s amusement facilities are analyzed to carry out example design based on the extracted elements. The Marine cultural elements extracted by this method are applied to children??s amusement facilities to provide new ideas and methods for the propagation of Marine cultural elements. Through children??s recreation facilities, children??s understanding of marine cultural elements is enhanced. We should cultivate children??s knowledge of the sea from childhood, effectively realize he communication of marine cultural elements, promote Chinese citizens?? awareness of the ocean.