On the basis of analyzing the way which the TPL uses to create the value and the problems in the development of the TPL companies， the paper emphasizes the importance of improving the customer satisfaction for the Third-Party Logistics companies. The writer takes the express delivery as an example，using the SWOT method to analyze strength， weakness， opportunity and treat that the local express delivery faces. Combined with customer satisfaction theory and the trend of the development of the TPL， the writer designs a questionnaire focusing on valuing service of the express delivery. By analyzing the importance-satisfaction of the data got from the questionnaire，the writer got the service quality assess index that the customers most satisfy and respect and sets up a suit of service quality assess index system. And the writer also assesses the service which the postal service and the express service ran by the local people supply.
Key words: TPL，customer satisfaction，express delivery，quality of the service，evaluating index system
