Guided by the“dual carbon”strategic goal, zero-carbon parks, as a key practical vehicle for promoting the clean and low-carbon transformation of the energy system and building a new power system dominated by new energy, have been brought into a stage of rapid planning and construction. The construction of a zero-carbon park is regarded as essentially a systematic carbon reduction process that gradually evolves from low carbon to zero carbon, in which the innovation and application of carbon reduction and carbon reduction technologies are particularly critical. Based on this, an in-depth analysis from the perspective of energy-carbon coupling is conducted to systematically expound the research progress and application practice of the key carbon reduction technology system in the process of zero-carbon park construction. It is focused on in-depth research in four core technology areas：planning technology, operation optimization technology, carbon asset collaborative management technology, and key supporting technology platforms. The main challenges and core technical support faced in the current construction are sorted out, summarizes the development status and existing deficiencies of each technology are summarized, and its future development trends are looked forward to, in order to provide a reference for theoretical research and engineering practice of zero-carbon parks in my country.