Vulnerability is central to migrant itineraries of Chinese en route to France. Vulnerability starts during the journey and continues after arrival. Their trip often lasts several months in inhumane conditions. Reaching France does not put an end to their tribulation, though. They find themselves in an illegal situation, stuck between the impossibility of obtaining a working permit and the necessary reimbursement of their debts as early as possible. Underground economy, which provides most illegal jobs, and particularly ethnic economy seems to be the only possible outcome. This outcome results in extreme exploitation through work. This article highlights this exploitation, set up by employers that often originate from the Chinese community, and that can therefore easily profit from new migrants’ vulnerability.