Method for sending personal social account numbers to host of business card after identification of business card

The invention discloses a method for sending personal social account numbers to a host of a business card after identification of the business card, which comprises the following steps that: a user A identifies information in a business card of a user B through business card identification software and saves the information in an address book; information is automatically sent to the host of the business card, namely the user B, and comprises partial or all social account numbers of the user A; and based on an email address of the host of the business card, namely the user B, the user A establishes a link for requesting to be added as a friend according to the email address of the user B by utilizing WEB API (application program interface) of each social website and combining a user name and a password of the user A in a corresponding website, and lists the link in the content of the email sent to the user B. In the method, after the user identifies the information of the business card through the business card identification software and saves the information of the business card, the host of the business card is automatically informed of the social account numbers of the user, and the deep contact of the two users is established.