CONTENTS 2 Contents I Higgs Physics 4 1 Preface 4 2 Supersymmetric Electroweak Corrections to Charged Higgs Boson

In this report, instead to give comprehensive review on two important research fields during my first term postdoctoral working period: Higgs and FCNC physics, I will collect part of my recently works on it. Charged Higgs is the distinguished signature of new physics, in this report, I review my two works on charged Higgs associated production with top quark and W boson at hardron col-liders. Our researches show that these two charged Higgs production mechanisms are important channel not only in finding charged Higgs, but also in studying the quantum structure of new physics. Flavor Changing Neutral Current (FCNC) processes are forbidden at tree level in the Standard Model (SM), so they act as the ground to test quantum structure of the SM and also very important channel in finding new physics beyond the SM. In this report, I focus on the studies on FCNC processes on linear colliders and in B-factories.