Abstract: 【Purpose/significance】In the digital economy era, the personal information of minors has property value and has been re⁃ peatedly seriously violated, which is largely related to the imperfection of the guardian consent rules.【Method/process】Firstly, the three major dilemmas faced by the guardian consent rules in practice are analyzed: the single age division ignores the individual differ⁃ ences of minors, the authenticity of minors′ age information and guardian consent is weakened, and the guardian consent has the risk of irrational decision-making. Secondly, the three legal foundations of the protection of minors′ personal information are explained, namely, the personal information of minors has super-personal interests, the guardian consent rules are legitimate, and the principle of being most beneficial to minors. Finally, the breakthrough of the protection of minors′ personal information is obtained.【Result/con⁃ clusion】The three strategies of refining the age limit, constructing an independent personal information processing identity recognition system, and granting minors the right to be forgotten should be adopted to maximize the information rights and interests of minors【. In⁃ novation/limitation】Based on the tension between the guardian′s informed consent and the minor′s right to self-determination of infor⁃ mation, practical suggestions on the age of minors′ personal information protection and the application of guardian consent rules are proposed, which is conducive to the comprehensive protection of minors′ personal information.