An innovation and creativity data processing method, device and system and a certificate storage device. An enterprise client generates a unique corresponding first data string according to innovation and creativity data; and sends the first data string to the certificate storage device for certificate storage; the certificate storage device returns return receipts such as certificate storage time and credible timestamp. The certificate storage time is credible time issued by a credible time issuing device, and the credible timestamp is obtained in a manner in which the certificate storage device performs, by using a private key, digital signing on a second data string that is generated according to the first data string and the certificate storage time, thereby ensuring the authenticity and the credibility of the certificate storage device. The certificate storage time of innovation and creativity data is cured by means of the credible time issued by the credible time issuing device; the certificate storage process is based on the first data string rather than innovation and creativity data content, thereby effectively ensuring the confidentiality of data content of the enterprise client; meanwhile, the certificate storage process is implemented by a third party that does not have a benefit relationship with a user, thereby improving the credibility of original creativity authentication of innovation and creativity data of the enterprise.
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