Abstract: A more scientific overall efficiency appraisal index system of port-typed listed companies is established, and a lack of appraisal index research in existing literatures is made up. Then, the overall efficiency appraisal model of port-typed listed companies has established based on neutral network approach. The model’s practicability is validated by adopting 13 Chinese port-typed listed companies in the stock market. Finally, suggestions for improving the overall efficiency of Chinese port-typed listed companies are proposed.

Key words: port-typed listed company, overall efficiency, neutral network, appraisal model