$("#id").multiSelect({ oneOrMoreSelected: '*',selectAll:false,noneSelected:'默认显示' }); Usage: $('#id').multiSelect( options, callback ) Options: selectAll - whether or not to display the Select All option; true/false, default = true selectAllText - text to display for selecting/unselecting all options simultaneously noneSelected - text to display when there are no selected items in the list oneOrMoreSelected - text to display when there are one or more selected items in the list (note: you can use % as a placeholder for the number of items selected). Use * to show a comma separated list of all selected; default = '% selected' optGroupSelectable - whether or not optgroups are selectable if you use them; true/false, default = false listHeight - the max height of the droptdown options