Abstract: Combining blind signature with certificateless cryptology, a certificateless blind signature scheme is proposed. This scheme solves the escrow problem and retains the merits of blind signature with no deed of certificate. This scheme includes various functional algorithms such as system initialization, partial-key-extract, set-secret-value, set-public-key, set-private-key, and so on. Finally, an analysis of the scheme's security is presented. The results demonstrate its capability of achieving high level of security.