The computer technology has come up with various technology one among is the cloudbased services have become more important and prominent. Cloud based services provide users with lots of security issues. Therefore, the study of access control scheme to protect users privacy in cloud environment is of great significance. In this paper, we present an access control scheme to the stored data in the cloud . The users who access the data stored in the cloud should request the data owner. The Key is generated in order to obtain the data. This provides the security feature to stored information. Function and performance testing shows that the PS-ACS scheme can achieve privacy protection in cloud based services.