本文以青海省鱼卡煤田北山区现有的地质勘探资料和前人研究成果为基础，以沉积学、煤田地质学理论为指导，以聚煤规律研究为主线，以含煤地层的研究为重点，总结了研究区地质背景和煤层赋存规律，分析其沉积与构造控煤的规律性，最后总结了盆地演化过程中煤炭资源的展布规律。 北山勘查区位于青海省海西州大柴旦镇西北约45km处，面积约24km2。构造形态总体为一背斜构造，并伴有断层，构造复杂程度为中等偏复杂。含煤地层为侏罗系中统石门沟组含煤段和大煤沟组含煤段，分别含M5、M6、M7三个可分层对比的煤组，主要煤层为较稳定型。 研究区在三叠纪以前一直处于上升隆起遭受剥蚀阶段，于燕山运动中期开始接受侏罗系地层沉积。在整个燕山运动中、后期，它经历了上升、下降、再上升的发展过程，鱼卡煤田(矿区)侏罗系含煤地层正是在其下降的过程中形成的。 研究区侏罗系含煤地层均为陆相沉积，主要的聚煤环境为冲积扇、辫状河、辫状河三角洲、曲流河三角洲及湖泊聚煤环境。研究区最为有利的聚煤环境为三角洲泥炭沼泽聚煤环境，尤其在泛滥盆地及分流间洼地相区，地势低洼，覆水不深，营养丰富，有利于植物生长与泥炭堆积，常形成厚煤层。其次为辫状河、辫状河三角洲聚煤环境，由于受到湖平面频繁升降变化影响，研究区滨湖沼泽聚煤环境最差。 研究区F7和F1逆断层为主要的控煤断裂。F7断层位于北山含煤区北界，该逆断层上盘，不但含煤地层完全侵蚀缺失，就连下伏奥陶系地层也出露地表遭受侵蚀，而该断裂下盘下降，大煤沟组一段、大煤沟组二段和石门沟组一段地层得到保存，主体为辫状河聚煤环境，该区域具有较好的勘探潜力。

The paper is based on current geological exploration data of Yuqia coal field of Beishan region of Qinghai province and the previous research results, which guided by theories of sedimentology and coal geology. To study the coal accumulation is as the main line, the paper focused on the research of coal bearing areas, and conclusion of the geological background and coal seam hosting pattern of study area. Then to analyze the law sedimentary and the structural controlling coal. Finally summarizing the distribution law of coal resources in the process of basin evolution. The exploration region of Beishan is located on 45 km of the north-west of Da chaidan town, Haixi state, Qinhai province, whose square is 24km2. The whole structural configuration is a anticline, and has some associated fault whose structural complexity is middle to complex. The coal-bearing strata is coal-bearing member of Shimengou group and Dameigou group of middle Jurassic, including M5,M6,M7 which are stratified and compared coal groups, and main coal bed is more stable type. The study area was always being on denudation stage before Triassic. Middle Yanshan movement, it was gradually accepting sedimentary of Jurassic. During the period of middle and late whole Yanshan movement, it experienced process of increasing, decreasing and decreasing again, which the coal bearing area of Jurassic of Yuqia region was forming during decreasing. The coal bearing strata of study area of Jurassic are all continental deposit, and mainly coal accumulating environment contains alluvial, braided river, braided river delta, meandering river delta and river coal accumulating environment. The most favorable area to forming coal of the study area is peat swamp of delta, especially in flood basin and depression where the ground is low, the water is shallow, nutrition is rich that is benefit for growth of plants and accumulation of peat, forming thick coal seam. The worse environment is braided river and braided river delta. Due to the influence of frequent lifting of surface of lake, the worst environment is lakeshore swamp. The mainly control coal fracture of the study area are reverse faults (F7 and F1). The reverse fault of F7 is located on the north of coal bearing area of Beishan, the hanging wall of the fault not only losses coal bearing strata, but also was eroded because of outcropping ground. However, the coal bearing strata of the footwall is saved very well, especially 1st member in Dameigou group, 2st member in Dameigou group and 1st in Shimengou group, whose environment is braided river accumulating environment and has a better potential to prospect.