In this paper, the monthly mean zonal winds in the MLT region (90~120 km) over Eastern Asian sector that is represented by the meridian of 40° longitude width centering at 120°E, are re‐examined by using the WINDII/UARS data winds taken during November 1991 to August 1997. The one year course of the winds in latitude‐height cross‐section ranging from 0° to 60°N latitude and from 90 to 120 km height are presented. Good agreements are seen in the comparison of the yearly course of the current zonal wind estimates and that of an observational estimates using the data taken by the Wuhan (30°N, 114°E) meteor radar. Agreement is also seen in the comparison of the two monthly zonal winds derived respectively by WINDII/UARS and HRDI/UARS data. Both these agreements suggest that the current results represent the general features of the zonal winds in the meridian. Large discrepancies are seen in the comparison between the monthly zonal winds estimated by using the WINDII data and that provided by the CIRA‐86 reference atmosphere, in particular in the height range above 100 km. And the discrepancy is even larger at low latitudes equatorward, where the CIRA‐86 zonal winds often exhibit opposite direction against that of the WINDII winds, which suggests that the reference atmosphere holds significant uncertainty as to the real atmosphere.