Auxin transport carriers modulate organogenesis and growth by affecting polar auxin transport. Three types of auxin transport carriers have been identified: AUX1 (Auxin Resistant) protein PIN (PIN-FORMED) protein families and MDR/PGP(Multidrug-Resistant/P-glycoprotein) protein families. Recent advances on auxin transport carriers in Arabidopsis, Maize.Rice are summarized,and research perspectives in this field are discussed in this review.