This paper reports the successful synthesis of SiC/spinel (MgAl 2 O 4 ) nanocomposite from talc, aluminum and graphite powders. The initial powders were mixed to obtain stoichiometric spinel containing 27.26wt.% SiC. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM) techniques were utilized to characterize the synthesized powders. SiC/spinel nanocomposite was obtained after 6h ball milling of initial materials in argon atmosphere with subsequent annealing at 1200°C for 1h in vacuum. The obtained nanocomposite had crystallites size between 1 and 15nm with the mean diameter of 9nm. The SiC/spinel composite formation mechanism was scrutinized. The results showed that SiC/spinel nanocomposite was not produced directly and the formation of some intermediate compounds is unavoidable during the synthesis procedure. The SiC/spinel nanocomposite powder may be a potential nanocomposite for high temperature applications with self-crack-healing capability.