Abstract: The process of the high-pressure gas gathering is adopted in Daniudi Gas Field. Throttling refrigeration technology for dehydration and de-hydrocarbon requires enough pressure energy to meet the natural gas transportation standard. When the gas pressure drops to a certain extent, there is no enough pressure energy in gas station to control the water dew point and hydrocarbon dew point of natural gas using throttling expansion refrigeration and low temperature separation method. The gas gathering process needs further optimization with supercharging technology and other dehydration process. This paper analyzes the problems of dehydration and de-hydrocarbon process used in different stages of gas fields development and some possible solutions.