The　enhancement　and　redistribution　of　a　self-generated　quasistatic　magnetic　field,　due　to　the　presence　of　the　polarization　field　induced　by　partially　ionized　atoms,　are　analytically　revealed　when　a　linearly　polarized　intense　and　short　pulse　laser　propagates　in　a　partially　stripped　plasma　with　higher　density.　In　particular,　the　shorter　wavelength　of　the　laser　pulse　can　evidently　intensify　the　amplitude　of　the　magnetic　field.　These　enhancement　and　redistribution　of　the　magnetic　field　are　considered　physically　as　a　result　of　the　competition　of　the　electrostatic　field　(electron-ion　separation)　associated　with　the　plasma　wave,　the　atomic　polarization　field,　and　the　pondoromotive　potential　associated　with　the　laser　field.　This　competition　leads　to　the　generation　of　a　positive,　large　amplitude　magnetic　field　in　the　zone　of　the　pulse　center,　which　forms　a　significant　difference　in　partially　and　fully　stripped　plasmas.　The　numerical　result　shows　further　that　the　magnetic　field　is　resonantly　modulated　by　the　plasma　wave　when　the　pulse　length　is　the　integer　times　the　plasma　wavelength.　This　apparently　implies　that　the　further　enhancement　and　restructure　of　the　large　amplitude　self-magnetic　field　can　evidently　impede　the　acceleration　and　stable　transfer　of　the　hot-electron　beam.　(c)　2005　American　Institute　of　Physics.