The present disclosure provides a method of controlling an application of an electronic device, including displaying a memo screen of a memo application in a foreground in a translucent manner with the memo screen superimposed on a first execution screen of a content application being executed in a background, displaying the translucent memo screen including a first content included in the first execution screen based on a user input for selecting the first content, switching the first execution screen of the content application to a second execution screen of the content application, displaying the memo screen of the memo application in the foreground in a translucent manner with the memo screen superimposed on the second execution screen of the content application being executed in the background, and displaying the translucent memo screen including the first content and a second content included in the second execution screen based on a user input for selecting the second content.