The present invention discloses a processing method for routing and an apparatus thereof. Wherein when performing routing, an upper network determinates whether the chosen virtual TE link forms a loop on a lower physics route or not according to an attribute value of shared risk for the virtual TE link; and/or determinates whether the virtual TE link chosen by the upper network forms a loop or not on a lower physics route through the lower network; if the loop is formed on a lower physics route, the upper network re-performs routing; if the loop is determinately not formed on a lower physics route, the current routing process is over. The scheme provided by the invention avoids a problem that the virtual TE link chosen by the upper network may form a loop on a lower physics route, saves network resource, prevents some nodes and links being repeatedly used, and avoids unnecessary faults at the same time.