The site selection and construction of Hutubi，Xinjiang air-gun source signal transmitting seismic station and its characteristic of source are elaborated. The rationality and necessity of the signal transmitting station location are analyzed from the view of geological structure and historical earthquake. The rationality of pool design is also analyzed on the basis to the air-gun experimental requirements. The air-gun signal recorded by the instrument beside the pool proves that air-gun source is highly reproducible. The signal time-frequency analysis proves that the dominant frequency of the air-gun is 2－6Hz. Finally，the SNR(signal to noise ratio)from superposition shows the propagation distance of Hutubi air-gun is about 380km. This study shows that the Hutubi large volume air-gun source is green，environmentally friendly and efficient and is very suitable for detecting the underground structure and monitoring the changes of the underground medium in regional scale.