Abstract: To address the issues of the analytical-based F_QSD（Fuzzy Quaternion Ship Domain） model, such as the difficulty in defining its boundary, insufficient consideration of influencing factors, and challenges in practical application, this paper incorporates the human factor of ship navigator and establishes a D_QSD（Dynamic Quaternion Ship Domain） based on the ship navigator′s state to enhance the analytical-based fuzzy quaternion ship domain. The shape parameter K value of the fuzzy quaternion ship domain is calculated according to the ship navigator′s state, and the dynamic ship domain model under different ship navigator states is obtained through computer simulation. The results show that the shape and area of the ship domain dynamically change under different driving states. When the ship navigator′s state is excellent, the ship domain shape is an irregular rhombus, and the domain area is the smallest. When the ship navigator′s state is poor, the ship domain shape is approximately rectangular, and the domain area is the largest. Compared with the traditional analysis-based ship domain, the proposed model determines the fuzzy boundary of the ship domain according to the ship navigator′s state, making the dynamic ship domain more flexible and adaptable.