The request processing of ternary optical computer lacked reasonable systematic standard and system for performance evaluation. Therefore, a four-stage service model was built based on complex queuing systems includingM/M/1、M/M/n、M^X/M/1和M/M^B/1. Meanwhile, strategy and algorithm of instant-scheduling and end-scheduling were proposed in detail. Based on different queuing systems, the calculation method of receiving time, preprocessing time, operating time and transmitting time of the request were discussed, and the final response time was obtained. Finally, the models of two strategies were verified by simulation experiments. Results show that the end-scheduling strategy is superior to the instant-scheduling strategy.