Legal analysis: if the borrower fails to repay the loan after legal collection by the informal platform, he can sue the people's court to claim the creditor's rights, but if the annual interest rate of the loan agreed between the platform and the borrower exceeds the legal provisions, the people's court will not support it.

Legal basis: Article 509 of General Principles of Civil Law of People's Republic of China (PRC), the parties shall fully perform their obligations as agreed.

The parties shall abide by the principle of good faith and fulfill the obligations of notification, assistance and confidentiality according to the nature, purpose and trading habits of the contract.

During the performance of the contract, the parties shall avoid wasting resources, polluting the environment and destroying the ecology.

"Provisions of the Supreme People's Court on Several Issues Concerning the Application of Laws in the Trial of Private Lending Cases" Article 26 If the lender requests the borrower to pay interest at the interest rate agreed in the contract, the people's court shall support it, except that the interest rate agreed by both parties exceeds four times the one-year loan market quotation at the time of the establishment of the contract.

The "one-year loan market quotation" mentioned in the preceding paragraph refers to the one-year loan market quotation issued monthly by the National Interbank Funding Center authorized by the People's Bank of China from August 20th, 20th, 20th19th.