Your answer is in your code.
<?php
wp_list_pages( array(
'title_li' => '',
'child_of' => '4721',
'post_status' => 'publish' // remove draft
) );
i have to show draft page but without link
To selectively eliminate links on draft pages when using wp_list_pages(), you would need to specify a custom walker function as one of the arguments. This walker constructs the HTML for each page in the list, it can decide what HTML to use based on post_status.
If the resulting list is flat (i.e. there are no grand children of 4721), you could abandon wp_list_pages() and get the page list with get_posts(), then loop through the results and only output link HTML for post_status publish. The presence of grandchild pages complicates the list enough that the walker solution is the better approach. Unless you don’t care to show the hierarchy of grandchildren.
