In recent years, the eastern part of China has seen a high incidence of loan lending crimes and there was an explosive growth after 2017. Most of the loan crimes in the "trap" means for the victim is aware of, so does not constitute the crime of fraud. The use of false water vouchers by the perpetrator of false lawsuits can constitute triangular fraud. The perpetrator randomly identified default cases can constitute ordinary fraud. Due to the loan crime "trap set" part can not become the basis for the perpetrator to claim debts, so most of the loan crime can not constitute illegal debt collection crime but extortion, in some cases, the two crimes can be trap set to be coincidence. When it coming to fraud and coercion dual nature means of debt collection cases, the selection of specific crime could be based on the nature of the main behavior and the victim to deliver the property psychology.