This paper systematically introduces the distribution situation of the seismic underground fluid well(spring) in China; the characteristic of observation wells aquifer, including the well depth, roof depth of observation aquifer, aquifer lithology, the type of reservoir aperture, well water temperature and etc；observation items and major observation instrument etc. Still the article introduces the observation condition of the hot water artesian well. The result of investigation and analysis stated above provides scientific basement for not only the further adjustment and amelioration of seismic underground fluid network, but also for the future development of seismic underground fluid science.