To avoid the unified judgment in the traditional analytic hierarchy process (AHP), the nine-scale and three-scale AHP are improved by introducing the optimum transfer matrix to calculate weight of each index in the evaluation system for personnel of underwater information-based warfare (PUIW), and both improved AHP integrated with fuzzy comprehensive evaluation are used to evaluate the competency level of PUIW. The example demonstrates that both improved method are effective and practicable without the unified judgment. Calculation precision of the improved nine-scale AHP is higher than that of the improved three-scale AHP, so the first method is suited to compare more officers’ comprehensive ability, and the second is fit for evaluation on single officer’s comprehensive ability quickly.