With the beginning of the 21st century, the 5G era officially kicked off.The rapid development of this technology makes the Internet and informationtechnology become more and more popular in people’s lives. According tothe survey data, China currently has more than 900 million netizens, and theInternet penetration rate is as high as 70%. The emergence of the era of big datanot only brings a new definition of our lives, but also brings some unexpectedtroubles and problems, such as the increasingly intense problem of personalinformation. With the development of various technologies, the imprint leftby each of us in this world will become clearer and clearer and be permanently recorded. This is not something to celebrate. In order to solve this dilemma, the“right to be forgotten” came into being, which means that personal informationneeds to be forgotten by the Internet world. This right was first applied inEurope, and some courts provided for this right in the form of precedent injudicial practice. After that, the European Union confirmed and protected thisright in writing in the General Data Protection Regulation. At present, Chinahas also entered the ranks of information powers, so the protection of personalinformation and the “right to be forgotten” related issues also need to be furtherstudied and regulated. The issue of “right to be forgotten” mainly includes thefollowing aspects. The first part is the expression of the basic theory of the rightto be forgotten, including the history, concept and characteristics of the right tobe forgotten, and will summarize and analyze the controversial issue of the legalattribute of the right to be forgotten. The second part discusses the exercise ofthe right to be forgotten, such as the right holder and obligor, and the definitionof the object of the right to be forgotten. The third part is about the conflictof rights, which is the contradiction and coordination between the right to beforgotten and other rights. The fourth part mainly uses the comparative methodto analyze the experience and lessons of extraterritorial legislation. The last partis about me.