Abstract: The Chifeng-Chaoyang Gold Metallogenic Belt in the northern margin of the North China Craton is an important gold resource reserve base in China. The Maotoushan Gold Deposit, a medium-sized open-pit mine with low grade in this belt, has been poorly studied, and its genetic types have been proposed as a hydrothermal type and a sedimentary-dynamic metamorphic type. Based on geological investigations, the key features of the Maotoushan Gold Deposit were summarized as follows: The mining area and its adjacent regions are characterized by well-developed fault structures; the ore-bearing rocks are predominantly terrigenous fine clastic rock formations of the Lower Permian Jiujuzi Formation, including slightly metamorphosed and moderately to weakly deformed andalusite slate, metamorphic sandstone, and carbonaceous slate, with only a small amount of quartz veins formed by hydrothermal superimposition; the ore bodies are controlled by stratigraphic horizons, interlayer fracture zones, fold structures, and brittle-ductile shear zones, exhibiting distinct stratabound characteristics; wall rock alterations are dominated by sericitization-silicification, pyritization, hematitization, and andalusitization; pyrite is the primary sulfide and the main gold-bearing mineral, with quartz as minor gangue minerals; gold mainly exists as free gold and intergrown gold with scarce inclusion gold; the industrial type of the ore is oxidized and semi-oxidized altered rock-type gold ore. Through comparative studies, the primary genetic type of the Maotoushan Gold Deposit is a Carlin-type gold deposit, which has undergone subsequent uplifting to the surface with denudation and oxidation. This deposit was formed in the Early Cretaceous, corresponding to the tectonic setting of large-scale lithospheric thinning and destruction in eastern China. The proposal of the Carlin-type genesis and the preliminary establishment of its metallogenic model have important guiding significance for regional ore-prospecting and exploration.