Message prompting method and device of instant messaging client

The invention discloses a message prompting method and a message prompting device of an instant messaging client. The method comprises the steps of: when monitoring a received message, displaying a floating prompting window on current interface, and displaying unread message information in the floating prompting window; and after monitoring a trigger command to the floating prompting window, displaying a detailed unread message list. The device comprises a prompting window display module and a message list display module, wherein the prompting window display module is used for monitoring whether a message communication module of the instant messaging client receives the message or not, if so, the prompting window display module displays the floating prompting window on current interface, and displays unread message information in the floating prompting window when the message received is monitored; and the message list display module is used for monitoring the trigger command to the floating prompting window, and displaying the detailed unread message list after the monitoring. With the adoption of the method and device provided by the invention, the screen display space of the terminal is less occupied for the convenience of user's operation.