The so-called bioengineering is generally considered to be based on the theory and technology of biology (especially microbiology, genetics, biochemistry and cytology), combined with modern engineering technology such as chemical engineering, machinery and computer, making full use of the latest achievements of molecular biology, consciously manipulating genetic material, directionally transforming organisms or their functions, creating new species with ultra-long-distance characteristics in a short time, and then passing through appropriate bioreactors, such as "engineering bacteria" or "engineering" ?

Bioengineering includes five major projects, namely, genetic engineering (genetic engineering), cell engineering, microbial engineering (fermentation engineering), enzyme engineering (biochemical engineering) and bioreactor engineering. In these five fields, the first two functions are to take conventional bacteria (or animal and plant cell lines) as specific genetic material receptors, so that they can obtain foreign genes and become new species-"engineering bacteria" or "engineering cell lines" that can express ultra-distant traits. The role of the latter three is to create good growth and reproduction conditions for this new species with great potential and carry out large-scale cultivation, so as to give full play to its inherent potential and provide great economic and social benefits for people.

Bioengineering has a wide range of applications, including agriculture, industry, medicine, pharmacology, energy, environmental protection, metallurgy, chemical raw materials and so on. It will have a great impact on the politics, economy, military affairs and life of human society, and provide a bright future for solving the problems of resources, environment and human health faced by the world.