A cardiopulmonary resuscitation 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.