The invention discloses a heart pacemaker with a noncontact power supply function. The pacemaker comprises a storage battery, an external pacemaker circuit and an internal energy receiving apparatus, wherein the storage battery and the external pacemaker circuit are connected, the external end of the external pacemaker circuit is provided with a wireless ECG sensor, the wireless ECG sensor is installed at an external heart, the external energy receiving apparatus is arranged in the skin of a left shoulder, the external pacemaker circuit is connected with the internal energy receiving apparatus through electromagnetic coupling, and the internal energy receiving apparatus is connected with a heart through an electrode. According to the invention, the fatigue degree of the heart is determined through measurement of ECG signals by use of a heart rate variation feature, and amplitude of pulse voltages needing to be provided and conduction stimulation time are controlled; an ECG signal detection filtering circuit, the storage battery and a noncontact power supply primary circuit are installed outside, and only a noncontact power supply secondary circuit is installed in the body of a patient, such that the volume of a built-in circuit is greatly reduced, and regular operation for replacement of the storage battery is unnecessary.