What kind of world is the 21st century? What is human pursuit? Can humans survive to perpetuity if they blindly continue the old thinking of the past? Many issues deserve our deep consideration and are worthy of serious reform. The so-called "biodiversity" is the difference or difference in the life world. There are differences or differences in the smallest DNA (genetic material), genes, cells, tissues, organs, individuals, ethnic groups, and even ecosystems in the life world. different. In recent years, advanced scientific powers have spared no effort in researching and preserving provenance, genes and species diversity. The goal is to enable all living things on the planet to survive in order to further provide human well-being. Biological diversity also provides complex interactions between life and nature: for example, intergrowth, interdependence, competition, symbiosis, parasitism, and epiphytes. The more complex the interaction, the more stable the ecosystem, and human beings rely on this stable ecosystem to be sustainable. Environmental protection and nature conservation are necessary measures to protect "biodiversity". Therefore, all walks of life in human society must attach importance to and implement the concept of "biodiversity." Course content includes biodiversity-related issues such as genes, viruses, microorganisms, land and sea organisms, invasive alien plants and animals, landscape ecology, ecological engineering methods, and community building.