In　this　Letter,　the　fractional　variational　iteration　method　using　He＇s　polynomials　is　implemented　to　construct　compacton　solutions　and　solitary　pattern　solutions　of　nonlinear　time-fractional　dispersive　KdV-type　equations　involving　Jumarie＇s　modified　Riemann-Liouville　derivative.　The　method　yields　solutions　in　the　forms　of　convergent　series　with　easily　calculable　terms.　The　obtained　results　show　that　the　considered　method　is　quite　effective,　promising　and　convenient　for　solving　fractional　nonlinear　dispersive　equations.　It　is　found　that　the　time-fractional　parameter　significantly　changes　the　soliton　amplitude　of　the　solitary　waves.　(C)　2011　Elsevier　B.V.　All　rights　reserved.