  This review starts with a brief introduction to the charged Higgs boson
$(H^\pm)$ in the Minimal Supersymmetric Standard Model (MSSM). It then
discusses the prospects of a relatively light $H^\pm$ boson search via top
quark decay and finally a heavy $H^\pm$ boson search at LHC. The viable
channels for $H^\pm$ search are discussed, with particular emphasis on the
$H^\pm -> tau+nu$ decay channel.
