* If you are an account of the Chinese Academy of Sciences email system, and have not bound your mobile phone number or set a secret email address in the China Science and Technology Cloud Passport, please contact your email administrator to reset your email password.

What's CSTCloud passport?

CSTCloud passport is the combination of an email address and a password that you use to sign in to services of CSTCloud. If you don't have a CSTCloud passport, you can sign up for free at any time.