Abstract: The micrometeoroid environment is a significant space factor that spacecraft encounter during deep space exploration. This article analyzed and reviewed the current popular micrometeoroid environment models. It examined the sources of micrometeoroids, models of sporadic micrometeoroid, micrometeoroid streams within the inner solar system, micrometeoroid environment in the outer solar system, and interstellar dust. Finally, the paper presented recommendations for future research on micrometeoroid environment models in China.