The growth kinetics and final morphology of ferrite (a) grains are characterized by interfacial energy and boundary mobility, which strongly correlate to constituent phase, misorientation angle and the specific orientation relationship at the alpha/gamma interface, such as the Kurdjumov-Sachs (KS) orientation relationship. In a previous phase-field simulation of the alpha grain growth, interfacial energy and mobility is assumed to be constant. Therefore, the simulated morphology of alpha grains is equiaxed. In this study, the multi-phase-field (MPF) simulation of alpha grain growth during lambda -> alpha transformation is performed to study the effects of phase- and misorientation-dependent interfacial energy and boundary mobility on the growth kinetics of alpha grains. The phase and misorientation dependence of interfacial energy is simply described by the Read-Shockley equation. Our results indicate that the phase- and misorientation-dependent interfacial energy induces alpha grain growth along the gamma grain boundary so as to reduce the total interfacial energy of the system. Furthermore, by considering both the phase- and misorientation-dependent interfacial energy and boundary mobility, the plausible growth kinetics of alpha grains can be reproduced and the morphology of alpha grains can be quite similar to the a grain morphology determined by the KS orientation relationship. (C) 2007 Elsevier B.V. All rights reserved.