To resolve the problem that ductile phase Cr decreases slightly the oxidation resistance of Laves phase NbCr2 alloys at 1200 oC, multiple elements Al, Si and Y were added to Cr-20Nb alloys. The results indicate that the oxidation resistance of Cr-20Nb alloys alloyed by multi elements is higher than that of unalloyed Cr-20Nb and Cr-20Nb alloyed by single element. Moreover, the oxidation resistance of Cr-20Nb alloys increases with increasing the Si content. SEM analysis shows that the additions improve the adhesion of oxide film on the matrix