In recent years, the phenomenon of illegal expropriation in the name of "public interest" has become increasingly prominent, which has caused many social contradictions. In view of this, it is urgent to solve the practical dilemma from the aspect of system perfection. In the process of system reference, we must thoroughly
explore the value foundation and inner character behind the public interest collection system, and make clear its legal attribution. Only in this way can we scientifically locate and even reconstruct the system. Through careful consideration, the public interest collection system of China is reasonably positioned from the perspective of law: it is essentially a typical public law system with human rights protection as its target value and public power control as its inherent character.