A cardiopulmonary resuscitation (CPR) training apparatus , comprising: a mannequin including a head portion with an airway, and a body portion connected to the head portion ; a compression portion including a compression plate provided in the body portion to be pressed in response to a chest compression, and an elastic body connected to the compression plate , the elastic body configured to provide a restoring force; an airbag connected to the airway, the airbag configured to enable an artificial ventilation; a magnetic substance and a magnetic field sensor configured to measure a change in a distance between the body portion and the compression plate ; and a measurer configured to measure a CPR performance state in response to the chest compression and the artificial ventilation performed on the mannequin, characterized in that the compression portion including a tilt detecting sensor installed on the compression plate , the tilt detecting sensor configured to detect a change in a tilt of the compression plate in response to the chest compression; and a position detecting sensor configured to detect a change in a relative position of the compression plate with respect to the body portion, in that the magnetic field sensor is disposed on the compression plate , and the magnetic substance is disposed on the compression plate, and the magnetic substance is disposed on a front surface of the body portion, in that the magnetic field sensor is configured to detect a change in a magnetic field in response to the change in the volume of the airbag , and the measurer is configured to measure a performance state of the artificial ventilation performed on the mannequin through the detected change in the magnetic field. a mannequin including a head portion with an airway, and a body portion connected to the head portion ; a compression portion including a compression plate provided in the body portion to be pressed in response to a chest compression, and an elastic body connected to the compression plate , the elastic body configured to provide a restoring force; an airbag connected to the airway, the airbag configured to enable an artificial ventilation; a magnetic substance and a magnetic field sensor configured to measure a change in a distance between the body portion and the compression plate ; and a measurer configured to measure a CPR performance state in response to the chest compression and the artificial ventilation performed on the mannequin, characterized in that the compression portion including a tilt detecting sensor installed on the compression plate , the tilt detecting sensor configured to detect a change in a tilt of the compression plate in response to the chest compression; and a position detecting sensor configured to detect a change in a relative position of the compression plate with respect to the body portion, in that the magnetic field sensor is disposed on the compression plate , and the magnetic substance is disposed on the compression plate, and the magnetic substance is disposed on a front surface of the body portion, in that the magnetic field sensor is configured to detect a change in a magnetic field in response to the change in the volume of the airbag , and the measurer is configured to measure a performance state of the artificial ventilation performed on the mannequin through the detected change in the magnetic field. <EOS>