Numerous granitoids occur in northern Xinjiang and its adjacent areas, with Carboniferous-Permian granitoids being most typical. This paper summarizes the spatial and temporal distribution characteristics of these granitoids. Carboniferous-Permian granitoids show different features in different units, and the peak values of their formation epochs are also different. Formation epochs of the Carboniferous-Permian granitoids in Altay are mainly concentrated in early Permian (289～266 Ma), and late Carboniferous seemed to be a distinct magmatic calm period. Western Junggar Carboniferous-Permian granitoids formation periods can be subdivided into early Carboniferous (340～320 Ma) and late Carboniferous-early Permian (310～290 Ma), with the latter being more stronger. Aluminum A-type granites, concentratedly formed at about 300 Ma, are widely spread, constituting an important feature of western Junggar. Carboniferous-Permian granitoids in eastern Junggar occur along the fault zones and were formed mainly from late Carboniferous to early Permian (320～270 Ma), characterized by the continuous emplacement of quite a number of alkaline (A-type) granites in this region in this period. Carboniferous-Permian granitoids in western Tianshan can be divided into three stages: early Carboniferous (355～345 Ma), late early Carboniferous-late Carboniferous (335～305 Ma) and early Permian (300～255 Ma). The early Permian granitic magma activity is the strongest, and Carboniferous granitoids mainly intruded into northern Tianshan, and the early Permian alkaline (A-type) granitoids are not only distributed in a large zonal area of southern Tianshan but also spread in northern Tianshan. Eastern Tianshan-Beishan is an area with most developed Carboniferous-Permian granitoids, characterized by both large quantities and wide distribution. Zircon ages show two obvious peaks, being respectively at 335～310 Ma and 300～270 Ma. Granitoids in eastern Tianshan are mostly Carboniferous ones, whereas granitoids in Beishan are mostly Carboniferous ones. In general, Carboniferous-Permian granitoids of northern Xinjiang and its adjacent areas were mainly formed in the late Carboniferous-early Permian period, especially during the early Permian, showing synchronization in the whole region. This period is also characterized by most developed alkaline (A-type) granitoids, which is regarded as the reflection of the extensional setting, maybe revealing extension characteristics in different tectonics. This is a microcosm of lots of acid and mafic-ultramafic magmatism in the Central Asian Orogenic Belt and the implication of its extensional setting.