Abstract: In recent years, major breakthroughs were made for natural gas exploration in Junggar basin, larger scale of gas reservoi rs were successively found in south margin, east part and northwest margin, indicating the enormous potential for natural gas exploration.Based on these results, this paper studied and discussed the macro regularity of distribution and enrichment of natural gas in Junggar basin, pointing out that ① large and medium scale of gas fields are distributed in special area in plane;② distribution of natural gas is obviously controlled by gas-bearing sytem;③ humus and high mature area are major factors for controlling formation and enrichment of gas;④ better assemblages of effective gas source and best regional caprock are important conditions for finding large and medium scale of gas fields;⑤ deeper part in Junggar basin is major place for forming these gas fields.Addi tionally, primary exploration areas are suggested, several proposals for gas exploration in future are presented.

Key words: Junggar basin, Natural gas, Gas field, Distribution, Exploration region