Abstract: There are two important physical parameters for researching reservoir: temperature and pressure. A reservoir is just resulted from organism matter generation and evolution in the fields of temperature and pressure. If regarding the underground temperature and formation pressure as one system, the geotemperature-pressure system in petroliferous basin generally belongs to a closed systm. In Zhundong region (eastern Junggar), there exist different characteristics of temperature and pressure fields in different areas, showing negative pressure and high temperature in north, normal pressure and normal temperature in center and high pressure and low temperature in south. Such differences are formed by different geologic development and evolution history.

Key words: Zhundong area, temperature, pressure field, characteristic, feature