Legal analysis: If a party surrenders himself after buying and selling his own credit card, he shall generally be sentenced to fixed-term imprisonment of not more than three years or criminal detention, and shall also or solely be fined not less than 1, yuan but not more than 1, yuan. However, due to the existence of voluntary surrender, the punishment can be lightened or mitigated, and if the crime is minor, the punishment can be exempted. Specifically, it is still necessary for the people's court to determine how to sentence according to the facts of the crime, the nature of the crime, the circumstances of the crime and the degree of social harm.

Legal basis:

Article 177 of the Criminal Law of the People's Republic of China has one of the following circumstances, which hinders the management of credit cards, and shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention, and shall also or only be fined not less than 1, yuan but not more than 1, yuan; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than 1 years, and shall also be fined not less than 2, yuan but not more than 2, yuan:

(1) Holding and transporting a large number of counterfeit credit cards knowingly, or holding and transporting a blank credit card knowingly;

(2) illegally holding other people's credit cards in a large number;

(3) fraudulently obtaining a credit card by using false identification;

(4) selling, buying or providing others with forged credit cards or credit cards fraudulently obtained with false identification.

whoever steals, buys or illegally provides other people's credit card information shall be punished in accordance with the provisions of the preceding paragraph.

any employee of a bank or other financial institution who commits the crime mentioned in the second paragraph by taking advantage of his position shall be given a heavier punishment.

Article 67 A person who voluntarily surrenders himself after committing a crime and truthfully confesses his crime is a voluntary surrender. Criminals who surrender themselves may be given a lighter or mitigated punishment. Among them, those who commit minor crimes may be exempted from punishment.

if a criminal suspect, defendant or criminal serving a sentence who has been subjected to compulsory measures truthfully confesses his other crimes that have not been mastered by the judicial organs, it is considered as surrender.

although a criminal suspect does not have the circumstances of surrender as stipulated in the preceding two paragraphs, he can be given a lighter punishment if he truthfully confesses his crime; Because he truthfully confessed his crimes and avoided particularly serious consequences, he may be given a mitigated punishment.

Article 2 of the Interpretation of the Supreme People's Court and the Supreme People's Procuratorate on Several Issues Concerning the Specific Application of Laws in Handling Criminal Cases of Impairment of Credit Card Management, who knowingly holds and transports more than 1 but less than 1 blank credit cards, shall be deemed as "a large quantity" as stipulated in Item 1, Paragraph 1, Article 177-1 of the Criminal Law; Those who illegally hold more than five credit cards but less than fifty shall be deemed as "a large number" as stipulated in Item 2, Paragraph 1, Article 177-1 of the Criminal Law.

In any of the following circumstances, it shall be deemed as "a huge quantity" as stipulated in the first paragraph of Article 177-1 of the Criminal Law:

(1) Holding and transporting more than ten credit cards while knowing that they are forged;

(2) knowingly holding or transporting more than 1 blank credit cards;

(3) illegally holding more than 5 credit cards of others;

(4) fraudulently obtaining more than ten credit cards by using false identification;

(5) selling, buying or providing others with forged credit cards or obtaining more than ten credit cards by false identification.

anyone who applies for a credit card against other people's wishes by using his identity card, military officer's card, soldier's card, Hong Kong and Macao residents' travel permit to and from the Mainland, mainland travel permit for taiwan residents, passport, etc., or applies for a credit card by using forged or altered identity certificates shall be deemed as "fraudulently obtaining a credit card by using false identity certificates" as stipulated in Item 3, Paragraph 1, Article 177-1 of the Criminal Law.