SOLVED
i use javascript to set value
<script type="text/javascript">
$(document).ready(function(){
$.urlParam = function(name){
var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
return results[1] || 0;
}
$("input[name='acf[%FIELD NAME%]']").val($.urlParam('parent'))
});
</script>
Change “FIELD NAME” with field name like [field_5e8d66375739f]