Due to competitive environment, Keelung port must pay more attention to operational efficiency and devise an overall performance evaluation. In order to evaluate the overall performance of Keelung port, the researchers designs an evaluation system by employing balance scoredcard (BSC), and activity-based budgeting (ABB) was used to control cost and examine the achievement rate of target performance. The empirical results are as following: 1. ABB can increase benefits of strategies management on BSC. 2. A good operating strategy is critical for business success. 3. BSC makes firm operating in good order and with good reasoning. 4. Budgeting should be based on the target of strategy. Budgeting should reflect the strategy of the organization in order to reach the goal of the strategy. 5. Budgeting should be activity-based. Budgeting should be activity-based but not base on the request of departments. 6. ABB can help organizations to achieve the performance indicators of BSC.