Based on the background of judicalization of regulatory rules，the starting point and ultimate purpose of financial adjudication standards is to maintain financial security and prevent systemic risks. This paper systematically sorts out and differentiates the relationship between financial supervision and financial justice，and puts forward the basic principles and measures to be followed on how to coordinate the relationship between them. And on this basis，this paper further explores the transmission path from regulatory risk to civil legal risk，and financial regulatory rules can be directly used as the discretionary standard to identify the liability for contracting negligence，the liability for breach of contract and the liability in tort，and the regulatory spirit contained in them can be introduced into the category of public order and good custom to evaluate the value of the effectiveness of actions. After definitude the types of legal liabilities under various obligations，it clarifies the regulatory rules，judicial rules and key points of judicial judgment corresponding to the prone behaviors of civil legal risks of trust companies，and puts forward the risk prevention ideas corresponding to different stages.