【Objective】 To introduce the construction of the electronic blood-donation certificate information system(EBDCIS) in Zhejiang province, including the construction foundation, system design, system function and preliminary development achieved. 【Methods】 A provincially unified EBDCIS, based on Internet and cloud computing technology relying on the Zhejiang blood cloud platform with Alipay and WeChat applet as service carriers, was developed in 2019, which was oriented towards " the Internet Plus blood donation service" . 【Results】 In addition to the realization of electronic blood-donation certificate, the system mainly improved the online service, including 6 categories as blood donation information query, blood donation navigation, facial recognition, satisfaction evaluation, blood use exemption and blood knowledge area, covering 21 functions. 【Conclusion】 The application of EBDCIS in Zhejiang province has provided better care and service for blood donors, and is conductive to establish one-stop blood donation service platform.