SINOMACH is an important state-owned backbone enterprise directly managed by the central government. It is a state-owned enterprise at the deputy ministerial level and belongs to one of the enterprises with important influence and strategic position in the economic field. As an enterprise directly managed by the central government, SINOMACH plays a key role in the national economy and industrial development, and its business scope covers many fields such as machinery and equipment manufacturing and engineering contracting. China Machinery and Equipment Engineering Co., Ltd., as a secondary subsidiary of SINOMACH, is a bureau-level unit and an important part of SINOMACH system, and is responsible for undertaking specific business and management functions. Through the organizational structure and hierarchical division of SINOMACH and its subsidiaries, we can better understand the status and role of these enterprises in state institutions.