This paper presents an analysis method for the anchor pulling simulation test. Taking a Ro / Ro passenger ship as the research object, and based on the variable mass kinematics theory, a set of real-time and effective anchor system dynamic simulation method is developed and created by using SolidWorks software and vortex software, and compared with the field anchor pulling scene, which verifies the feasibility and reliability of the simulation method and provides an effective reference for the anchor system simulation, It also provides conditions for replacing wood model test.