Abstract: The present invention refers to a one-button information interactive method and system. The method includes steps as follow: based on a multimedia-file uploading interface activated by the children, the client adds a corresponding multimedia classification marker to a file header of a multimedia file selected by the children; the server saves the multimedia file in the specified storage space based on the username of the client and the multimedia classification marker, and marks a reading states of the multimedia file; the server retrieves an unread marker, and transmits an information reminding instruction to the net-media player corresponding to the username of the client; a remote controller receives a key signal outputted by the elderly; the net-media player reads the multimedia file with the unread marker from the specified storage space based on the first control signal, and plays the multimedia file with the unread marker via a television in descending order of uploading time.