In reality, migrant workers are often faced with the problem of insufficient evidence and difficult to obtain evidence when protecting their rights  Statistics on cases heard by the Changping District Court in Beijing show that about 80% of the cases in which migrant workers claim wages are due to migrant workers' lack of relevant evidence
Although labor contracts, wage cards, wage slips, bank transfer records, attendance sheets, work permits and other materials can be used as evidence that migrant workers are owed wages, but many migrant workers work with contractors only pay in cash, but there is no evidence to retain evidence, coupled with the lack of evidence awareness of some migrant workers, it may also lead to insufficient evidence to protect their rights after being owed wages
The legal problems encountered by Peasant Workers in the process of asking for wages