Abstract: This paper develops new absolute models of plate motion relative to ocean ridges:PRF-2000VEL model with respect to the fixed Pacific Ridge,SRF-2000VEL model with respect to Southern mid-Atlantic ridge and NRF-I2000VEL model with respect to Northern mid-Atlantic ridge,analyze and compare the absolute motions of lithospheres relative to Pacific Ridge,Southern mid-Atlantic and Northern mid-Atlantic Ridge,respectively,which shows the Eastern Pacific mid-ridge and the mid-Atlantic Ridge is extending at the even 10.9mm/a rate.