The equatorial ionospheric vertical ion drift velo cities (Vz) are important for the understanding of the equatorial ionospheric dynamics. In this study the equatorial electric eld and World Magnetic Models have been used to compute the electric and magnetic elds, respectively. These parameters in turn used to compute the vertical drift velo city. The drift velo city has been computed for di erent day, month, season, and longitudes. Our result indicates that the peak of Vz is maximum in Asia during June solstice and September equinox with a values of 65 m/s and 60 m/s respectively at 11:00 LT and minimum in North America during December solstice and March equinox with a comparable values of 10 m/s at 9:00 LT times. Similarly, in Ethiopia the peak Vz with amplitudes of 15-20 m/s during September and March equinox and 10-15 m/s during December and June solstice seasons at 11:00 LT times. Thus the day time equatorial vertical drifts have largest amplitudes between 11:00 LT and 19:00 LT with typical values of 15-25 m/s that shows our model result is in a good agreement with other equatorial ground-based observations over India, Brazil, Peru and Kwajalein.