The Fuping, Wutai, and Hengshan Complexes in the North China Craton preserve imprints of widespread late Neoarchean magmatism. Here, we report results from systematic petrology, mineral chemistry, whole-rock major, trace and platinum-group element geochemistry, zircon U–Pb geochronology and Hf–O isotopes from the Yangmuqiao mafic–ultramafic intrusion and coeval tonalite–trondhjemite–granodiorite (TTG) gneiss from the Fuping Complex. The mafic–ultramafic intrusion is composed of pyroxene hornblendites, hornblendites, and minor harzburgites. The salient geochemical features of the mafic–ultramafic intrusion and the Fuping TTG gneiss display subduction-related island arc signature, such as fractionated REE patterns with elevated LREE, enrichment of LILE (K, Rb, and Ba) and LREE (La and Ce), and depletion of HFSE (Nb, Ta, Zr, and Hf) and HREE. The chemistry of the clinopyroxene and chromite in the pyroxene hornblendites shows affinity with Alaskan-type mafic–ultramafic intrusions.Zircons from the pyroxene hornblendite yield weighted mean 207Pb/206Pb age of 2514±15 Ma, and those in the Fuping TTG gneiss show mean age of 2513±13Ma. Zircon Hf and O isotopic compositions are used as magma source and crustal evolution indicators. Zircon grains in the pyroxene hornblendite display positive εHf(t) values (2.6–6.7), Neoarchean TDM (2570–2723Ma), and their δ18O values vary from 3.8‰ to 7.0‰ (average 6.2‰). Zircons in the TTG gneiss show εHf(t) values in the range of −1.8 to 4.9, TDM of 2637–2888Ma, and δ18O values of 4.1‰–6.7‰ (average of 6.1‰). These results suggest that the parental magma of the late Neoarchean magmatism in the Fuping area was dominantly extracted from the depleted mantle and contaminated to different degrees by crustal components. The pyroxene hornblendites have obviously higher IPGE contents (ΣIPGE=1.69–2.39ppb) and lower Pd/Ir ratios (5.97–6.28) than those in the hornblendites (ΣIPGE=0.56–0.72ppb, Pd/Ir=6.48–15.25), suggesting different compatibility of IPGE and PPGE during the fractional crystallization. The study area is located at the western segment of the Fuping Complex and the eastern periphery of the Wutai greenstone belt. We propose that the late Neoarchean arc magmatism recorded by the Yangmuqiao mafic–ultramafic intrusion and the Fuping TTG gneiss is related to the subduction–collision process of the Ordos and the Qianhuai microblocks along the zone of ocean closure represented by the Wutai greenstone belt.