Deformation station observation target is the earth’s internal force caused by deformation change． As the deformation stations are set up in the earth’s crust surface，they are inevitably influenced by various factors，which means the observation sequence may contain information from outside the earth to different degrees． In order to better study the deformation information caused by the earth internal forces contained in Jinghe station horizontal pendulum， the paper studies the impact on the Jinghe station horizontal pendulum observations in ground temperature，air temperature and air pressure． The research shows that: (1) Ground temperature and air temperature are the main impact factors in the annual change of Jinghe station horizontal pendulum and show a quasi-linear relationship among them． (2) After fitting a straight line to remove trend，linear correlation between observed data and meteorological factors obviously increases，which is not a meteorological factor change．