The study of structures along the margins of tectonic units is crucial for exploring the interactions between blocks or plates. The analysis of structural styles near the Zhulazaga ore district on the eastern margin of the Alxa Block not only helps to understand the process of structurally controlled ores, but also can reveal the interaction between the Alxa Block and the North China Plate. The strata in Zhulazaga area is mainly composed of the Mesoproterozoic Zenglongchang Formation and the overlying Agulugou Formation. Results of geological survey show that they are in parallel unconformity contacts. The specific structural styles are: ① the strata form an open anticlinorium, with the axis plunges towards the east and the hinge gently dipping towards the SSE or SSW. During the folding, a series of secondary folds and bedding-cleavage structures are widely developed due to interlayer shearing; ② In the western limb of the fold, the Zenglongchang Formation is thrust over the Agulugou Formation, causing the northeast-verging of folds within the Zenglongchang Formation, which is different from the occurrence of Zenglongchang Formation within the main fold. This is resulted from the top-to-the northeast thrust in the late stage. The formation age of undeformed granite within the folds is 274±3 Ma, which constrains the end time of the regional deformation and is consistent with the mineralization age. Referring to the planar graph and exploration profiles, it is believed that the anticlinorium and fault in the core controlled the mineralization, and the ore bodies were distributed in the transition area from the eastern limb of the anticline to the hinge zone. Based on regional geological data, it is suggested that the anticlinorium formed under the compression associated with the southward subduction of the Paleo-Asian Ocean in the late Paleozoic, followed by the plunging of the hinge related to the sinistral shearing of the Bayan Ul Mountains. The northeastward thrusting is due to the remote effect of the compression in the Tibetan plateau during the Cretaceous. The structural style of rocks near the Zhulazaga area reflects the shortening of the crust and the accompanying shearing during the orogenic process, which is an important example for studying the interaction between blocks or plates.