A deposition apparatus according to an embodiment of the present invention comprises: an evaporation source including a crucible in which a deposition material is accommodated, a heater unit supported on the outside of the crucible, and a cooling unit supported on the outside of the heater unit; a chamber which accommodates the evaporation source and provides a deposition space in which a deposition substrate is deposited; a weight measuring device which is arranged inside the chamber and senses the total weight of the evaporation source; and a control unit which is provided outside the chamber and transmits and receives a signal to and from the weight measuring device.