The whole automation system is mainly divided into two parts: one part is the hardware equipments consisted of all kinds of devices used in the testing system; the other part is the software program based on Labview language. I/O device is used to connect hardware with software. Through the automation system the test system need to be operated normally and accurate measurement is also acquired. Because of the strict requirements under the test conditions according to ISO 9459-2, the system needs to accurately identify solar time and determine the test process whether it is in a exactly true position in sequence. At the same time data acquisition system will be operated to collect and record data with real-time curve of all sorts of signals. After the whole test process is finished, all of data will be used to produce the test report. Therefore, the main purpose of automatic control system is to release the tedious labour work of the operator and develop a set of efficient and reliable system in order to measure and control the test system automatically. The system should also be reliable and stable in different conditions to guarantee the normal operation of the whole test system.