A human body terahertz wave simulation rehabilitation physiotherapy instrument for regulating sub-health. The physiotherapy instrument comprises a signal source generator (1), a modulator (2), a terahertz wave generator (3), a terahertz wave loudspeaker antenna (4) and a controller (5), wherein the signal source generator (1) is used for generating a signal source of a low-frequency terahertz wave signal the modulator (2) modulates, by controlling an electric frequency, the amplitude of the low-frequency terahertz wave signal of the signal source in various modes including pulse and sine, and inputs the modulated terahertz electromagnetic wave signal into the terahertz wave generator (3) the terahertz wave generator (3) receives the modulated low-frequency terahertz electromagnetic wave signal, conducts amplification and frequency multiplication on the low-frequency terahertz electromagnetic wave signal by means of a frequency extended link so as to generate a specific terahertz wave frequency band, and transmits same to the terahertz wave loudspeaker antenna (4) for radiation and the controller (5) is used for processing and controlling a complete machine signal. By means of the physiotherapy instrument, abundant human body terahertz electromagnetic wave sources are used for regulating various diseases, in particular cardiac diseases.La présente invention concerne un instrument de physiothérapie de rééducation par simulation donde térahertz du corps humain pour réguler létat de santé sous-optimal. Linstrument de physiothérapie comprend un générateur de source de signal (1), un modulateur (2), un générateur donde térahertz (3), une antenne de haut-parleur à onde térahertz (4) et un dispositif de commande (5), le générateur de source de signal (1) étant utilisé pour générer une source de signal dun signal donde térahertz basse fréquence le modulateur (2) module, par commande dune fréquence électrique, lamplitude du signal donde térahertz basse fréquence de la source
