David Moyes has made his interest known and watched the Congo international in Standard's Europa League quarter-final defeat to Hamburg last season.
However Mbokani has disappointed him by saying that he wants to join the Cottagers and called on Standard to let him go.
"I know that Fulham are interested," he said. "I also know that Lucien D'Onorfio promised to help me get a transfer a year ago and he will respect his word.
"I assume that the management of Standard and I will have contact once they have reached agreement and then everything will proceed."