The embodiment of the application discloses a method and device for information verification. The method includes the following steps: performing abstract operation on information to be verified to obtain an abstract value, and encrypting the abstract value to obtain an encrypted abstract value; when it is determined that a set credential set stores an associated credential containing the encrypted abstract value, in the associated credential, based on a preset corresponding relation, obtaining an encrypted signature value corresponding to the encrypted abstract value, judging whether a verification credential containing an abstract value exists in the credential set, and if yes, based on the abstract value, the encrypted signature value and a verification signature value contained in the verification credential, performing signature verification on the information to be verified to obtain a verification result; otherwise, based on the encrypted signature value and the abstract value, performing signature verification on the information to be verified to obtain a verification result. Thus, the circumstance that the information to be verified cannot be verified after the verification credential is deleted is avoided, and whether the verification credential is an illegally modified or counterfeited credential can be judged, thereby improving security of information verification.