在简要介绍航磁资料应用于区域壳内地温场研究的方法原理之后， 通过塔里木盆地大庆区块的实算应用， 分析研究了壳内地温场特征及其对油气生成的影响。指出利用航磁资料反演居里面深度， 进而推算壳内平均地温梯度， 是研究地温场的有效方法， 为大庆区块地壳结构、地壳热状态的研究及生油潜力评估提供了重要依据。 After briefly introducing the method principle of applying aeromagnetic data to the study of the geothermal field in the region, this paper analyzes the characteristics of the geothermal field in the shell and its effect on hydrocarbon generation through the practical application of the Daqing block in the Tarim Basin. It is pointed out that inversing the depth of in-depth surface using aeromagnetic data and then deducing the average geothermal gradient in the crust is an effective method to study geothermal field. It provides an important basis for the study of crustal structure, crustal thermal state and assessment of oil production potential in Daqing.