FIELD: medicine.SUBSTANCE: group of inventions relates to medicine. A method of non-invasive intracardial electrocardiography is realised by means of a device for non-invasive intracardial electrocardiography by the application of an interference device, possessing magnetic permeability and electric conductivity. ECG signals are registered by means of ECG. A magnetic field of selection is generated by means of selection with such a space diagram of the magnetic field intensity that the first auxiliary zone, possessing low magnetic field intensity, and the second auxiliary zone, possessing higher magnetic field intensity, is formed in the field of vision. Means of selection contains a unit of a selection field signal generator and an element of the selection field excitation, in particular magnets or coils of the selection field excitation. Space position of two auxiliary zones in the vision field is changed by means of excitation by the excitation magnetic field for the magnetisation of an interference device in the vision field to be changed locally. The excitation device contains a unit of the excitation field signal generator and an excitation coil of the excitation field. Detection signals are received by reception means. The detection signals depend on the magnetisation of the interference device in the field of vision, with the magnetisation being influenced by the change of the space position of the first and second auxiliary zones. Reception means contains a unit of signal reception and a reception coil for obtaining detection signals. Control over generation of respective magnetic fields is performed by control means for the movement of the interference device through the vascular system and heart in the direction, specified by commands of displacement and/or holding of the interference device in the constant position. Control means is intended for controlling the units of the signal generator for the generation and supply of controlling currents to respect
