立新煤矿三井位于鸡西盆地北部凹陷区中部。鸡西盆地中生界白垩系穆棱组和城子河组含煤地层发育于整个鸡西煤田。文章从区域地层、区域构造、区域岩浆岩、矿区地层、矿区构造、煤层、煤质等方面,对立新煤矿三井的深部区域地质背景及成矿条件进行了阐述。 Lixin Coal Mine is located in the central part of Jixi Basin northern depression. The Mesozoic Cretaceous Muling Formation and Chengzihe Formation in the Jixi Basin develop in the entire Jixi coalfield. This paper elaborates the geologic background and metallogenic conditions of the deep area of ​​the Mitsui coal mine from the aspects of regional stratigraphy, regional structure, regional magmatic rocks, ore district strata, mining area structure, coal seam and coal quality.