Step 1. Login to the Magento admin Panel and Navigate to CMS > page’s Design > Page Layout > Layout Update XML field
Step 2. Insert the code below into the Layout Update XML field
<reference name="root"> <action method="unsetChild"><alias>breadcrumbs</alias></action> <block type="page/html_breadcrumbs" name="breadcrumbs" as="breadcrumbs"> <action method="addCrumb"> <crumbName>Home</crumbName> <crumbInfo><label>Home</label><title>Home</title><link>/</link></crumbInfo> </action> <action method="addCrumb"> <crumbName>Parent CMS Page</crumbName> <crumbInfo><label>Parent CMS Page</label><title>Parent CMS Page</title><link>/parent-cms-page-url</link></crumbInfo> </action> <action method="addCrumb"> <crumbName>Child CMS Page</crumbName> <crumbInfo><label>Child CMS Page</label><title>Child CMS Page</title></crumbInfo> </action> </block> </reference>
Step 3. Change the parameter with your actual one like Parent CMS Page Title,parent-cms-page-url etc.
Now Refresh the magento cache as well as the browser cache then navigate to the page and you will see the bredcrumb over there.