：Explore the digital rendering mode with texturing brush and ink effect, analyze and simulate the brush and ink characteristics of traditional Chinese ink painting, especially the art of landscape painting, and try to integrate the texture of wrinkle method synthesis map and modeling technology based on particle deposition and stacking (overlapping) to render, thus realizing the computer simulation of small freehand brushwork and large freehand brushwork (splash ink) ink effects in traditional landscape painting. This research inherits and develops the aesthetic theory and thought of traditional ink painting art, and makes some beneficial exploration in the field of digital freehand ink painting, which has positive reference value and promotion significance for the development of Chinese ink painting.