The world-famous fauna fossil community in Chengjiang, Yunnan Province is the oldest Cambrian community of life as far as we know. It not only serves as the extremely valuable direct proof for “the Cambrian explosion” which is the nonlinear eruptive evolution, but also poses a major challenge for Darwin’s theory on gradual evolution. The species of Chengjiang Fauna lived in the early period of early-Cambrian epoch 5.3 hundred million years ago, and their fossils represent the grand vision of marine life and original features of all kinds of animals in a vivid way. A large number of various lifelike fantastic fossils are kept in the Chengjiang Special Burial Fossil Reservoir, including Anomalocaris, the primitive marine ruler and Haikouichthys ercaicunensis, the ancestor of all vertebrates. Besides, there are numerous soft-body fossils with well-preserved soft-body structures, including Hallucigenia, Microdictyon, and jellyfish and so on. The excavation of Chengjiang Fauna and the research on them unveil the whole picture of animal world during the Cambrian explosion the Cambrian life explosion, providing valuable proof for the theories on the origin, evolution and ecosystem of life in the early era of the Earth. The Chengjiang Fauna Fossil Community tells the whole world the miracle and grandeur of the Cambrian life explosion as an everlasting chapter of life evolution.