根据新的地球物理信息，得到天山及毗邻区地壳参数模型、地幔参数模型、构造圈重力模型和均衡模型，提出地壳和地幔的物质不均匀性深达300km。查明地幔在横向和垂向上的明显的不均匀构造。密度模型参数表明，天山地台后的造山带，是地幔流体质量转换影响地壳和地幔物质密度变化的结果，相变型式为辉长岩石榴岩粒晶榴辉岩。根据实验数据，提出地壳和地幔环流作用新模式，环流取决于深部源于地核的热质流，它是形成构造运动和地幔构造的主要原因。天山构造圈的参数模型几何上符合于地幔内梯级环流圈。 According to the new geophysical information, the crustal parameters model, the mantle parameter model, the gravity model and the equilibrium model of the tectonic circle in Tianshan and adjacent areas are obtained, and the material inhomogeneity of the crust and mantle reaches 300km deep. Identify the apparent inhomogeneous structure of the mantle in both horizontal and vertical directions. The density model parameters indicate that the orogenic belt behind the Tianshan platform is the result of the mass change of the mantle fluid mass affecting the material density of the crust and the mantle. The phase change type is the gabbro granulocryst eclogite. Based on the experimental data, a new model of the crust and mantle circulation is proposed. The circulation depends on the deep mass flow from the core and is the main reason for tectonic movement and mantle structure. The parameter model of the Tianshan structural circle is geometrically consistent with the cascade circulation in the mantle.