Legal analysis: You can't apply for a credit card only with a salary slip, and you need to find a company to issue an income certificate. Conditions needed to apply for a credit card: 1. A stable source of income; 2. Good credit record.

legal basis: article 41 of the measures for the supervision and administration of credit card business of commercial banks issued by China banking regulatory commission, the issuing bank shall conduct a credit investigation on the credit card applicant, fully verify and completely record the applicant's valid identity, financial status, consumption and credit records, and confirm that the applicant has a fixed job, a stable income source or a reliable repayment guarantee.