MatAnyone is an advanced video matting technology focused on achieving stable video keying through consistent memory propagation. It maintains semantic stability and detail integrity in complex backgrounds by using a region-adaptive memory fusion module combined with a specified segmentation map. The significance of this technology lies in its ability to provide high-quality keying solutions for video editing, visual effects production, and content creation, especially in scenarios requiring precision. MatAnyone's primary advantages include semantic stability in core areas and meticulous handling of boundary details. Developed by research teams from Nanyang Technological University and SenseTime, it aims to address the limitations of traditional keying methods in complex backgrounds.