This article proposes a new and very simple dark matter model. This article believes that the most basic particle that constitutes dark matter is called "dark particles", which is labeled in Chinese Anzi. The model assumes that there are two anzis with opposite signs and equal mass. Anzi of two different signs can be combined into dark matter atoms similar to the interaction between positive and negative electrons, and then form dark matter molecules, and finally form dark matter gas or liquid. Similar to electromagnetic interaction, the interaction between anzi is realized by exchanging dark wave quantum. By comparing the speed of light and sound, this article believes that the propagation speed of dark waves is one million times that of electromagnetic waves. This article is convinced that if dark waves can be detected and used well, humans’ vision in the existing universe can be increased by one million times.