Abstract: With the development of science and technology, especially cell biology and medical biopsy technology, people now have more knowledge of the human body than before. It is gradually realized that some scientific discoveries in medical science are compatible with ancient medicine. This paper describes the developmental origin, function and essence of the triple energizer from the concept of mesenchymal stem cells and mesenchymal tissue system. We propose that the triple energizer is the largest tissue system which connects all organs of human body and has special tissue structure. It is distributed between human tissues and organ systems, connects and supports all tissues and cells. It organically integrates tissues and organs, and plays a role in stem cell reserve, liquid metabolism, nutrient transport, immune regulation, hormone transport and signal transmission. The triple energizer connects the viscera and all parts of the body to nourish the Zang and Fu, through the running of Qi and blood, to conduct and complete the regulation system of human meridian function. The triple energizer/mesenchymal tissue system is mainly responsible for the proliferation and differentiation of stem cells, tissue regeneration and functional reconstruction. It participates in human immune surveillance, response and regulation, and plays a systematic role in the regulation and function of nerve, interstitial hormone, endocrine and tissue metabolism.

Key words: triple energizer, stem cell development and cell biology, mesenchymal tissue system