In this research, the approach of Six Sigma management will be used to define the requirement and the demand of service marketing. The relevant performances including number of order, product categories, number of new customers, number of customers, days of zero order for the service unit and sales performance will be measured. The key causes which affect the performance of the service marketing can be analyzed. The improvement and control actions of service marketing can be further recommended and implemented. The service quality can be also obtained and the effect of service quality on sales will be evaluated. The training system and standard operation procedures to improve and control the sales can be then established.