The invention discloses an device for regulating vital energy—Zen Qi (), which relates to the field of biotechnology, which comprises two electrodes and an electronic circuit generating output, where the positive and negative electrode of the output are placed respectively close to or contact with the yin and yang sides of the organism This device include: the power supply section, the current control section, the data storage and display section, the constant current section, the over-current protection section, the over-voltage protection section and the current detection section. By using real-time current detection and over-current and over-voltage protection, this device ensures the safety of organisms. The functions of the electronic circuit as described above can be achieved by discrete components or by integrated circuit. If it uses integrated circuit, it can greatly save a lot of discrete components, reducing the size of the device and improve its reliability. After using this device many people have increased saliva, improved digestion, memory, and immunity system, improved health condition, etc., the result are the same as: vital energy has been greatly replenished. This device is worth to be promoted to the world.