An electronic device comprising: a display; communication circuitry configured to provide a wireless connection with an external electronic device; a processor operatively coupled with the display and the communication circuitry; and a memory operatively connected with the processor, wherein the memory is configured to store instructions which, when executed, cause the processor to control the electronic device to: while a state of the processor is a sleep state, receive information of a first notification message generated within the external electronic device using the communication circuitry; convert the sleep state of the processor to an active state; display the first notification message through the display; request the external electronic device for at least one second notification message using the communication circuitry in response to the reception of the information on the first notification message, the at least one second notification message being generated within the external electronic device prior to the first notification message; receive the at least one second notification message; and display the second notification message in at least a portion of the display in response to the reception of information on the at least one second notification message, wherein a sequence in which the first notification message and the at least one second notification message are displayed within the display corresponds to a time at which the first notification message and the at least one second notification message are each generated. a display; communication circuitry configured to provide a wireless connection with an external electronic device; a processor operatively coupled with the display and the communication circuitry; and a memory operatively connected with the processor, wherein the memory is configured to store instructions which, when executed, cause the processor to control the electronic device to: while a state of the processor is a sleep state, receive information of a first notification message generated within the external electronic device using the communication circuitry; convert the sleep state of the processor to an active state; display the first notification message through the display; request the external electronic device for at least one second notification message using the communication circuitry in response to the reception of the information on the first notification message, the at least one second notification message being generated within the external electronic device prior to the first notification message; receive the at least one second notification message; and display the second notification message in at least a portion of the display in response to the reception of information on the at least one second notification message, wherein a sequence in which the first notification message and the at least one second notification message are displayed within the display corresponds to a time at which the first notification message and the at least one second notification message are each generated. while a state of the processor is a sleep state, receive information of a first notification message generated within the external electronic device using the communication circuitry; convert the sleep state of the processor to an active state; display the first notification message through the display; request the external electronic device for at least one second notification message using the communication circuitry in response to the reception of the information on the first notification message, the at least one second notification message being generated within the external electronic device prior to the first notification message; receive the at least one second notification message; and display the second notification message in at least a portion of the display in response to the reception of information on the at least one second notification message, wherein a sequence in which the first notification message and the at least one second notification message are displayed within the display corresponds to a time at which the first notification message and the at least one second notification message are each generated.