With the rapid advancement of Web technology, real-time interaction in 3D animation modeling, based on Web technology, has emerged as a crucial tool for enhancing user experience. This paper delves into Web technology as its primary focus, with WebGL serving as the cornerstone, to investigate the feasibility of real-time interaction in 3D animation modeling on the Web. The study conducts a thorough analysis of existing Web technologies and tools, such as Web GL (Web Graphics Library) and Three.Js (Javascript 3D library), to uncover the intricacies of 3D model rendering and interaction within the realm of Web technology. Building upon this foundation, an experimental model is constructed to enable fundamental interactive operations like translation, rotation, scaling, and manipulation of 3D animations. By incorporating user feedback, the interactive design of 3D animation is further refined. Furthermore, this paper explores the method of enhancing 3D modeling through WebAR (Web Augmented Reality) and strategies to enhance real-time fluency in 3D animation interaction through improved Web transmission and rendering efficiency. With 10 users, the system achieves an average response time of 80 ms, a stability score of 9.6, and an error rate of 0.2%. The findings of this research will not only enrich the realm of Web technology in 3D animation modeling but also drive the advancement of Web technology to elevate user interaction experiences.