A method for exchanging information, implemented by a first server, comprising: receiving (101, 201) by the first server, first text information sent by a second server; generating (102, 202) by the first server, second text information based on the first text information; updating (103, 203) by the first server, in response to receiving an editing instruction sent by a client device of a user, the second text information; and sending (104, 204) by the first server, updates of the second text information to a client device of each user being in communication connection with the first server, to enable the client device of each user to update the first text information according to the updates, characterized in that, the first text information comprises a mail draft, and the second text information comprises a shared document, the first server is a document server, and the second server is a mail server, and after updating, in response to receiving the editing instruction sent by the client device of the user, the second text information, the method further comprises: acquiring, by the first server, an update message by intercepting a preset number of words in the updates of the shared document, and adding the update message to a message queue of editing content; receiving, by the first server, a modification content acquisition instruction sent by the second server, wherein the modification content acquisition instruction is generated when the second server detects that the update message is added to the message queue of the editing content; and sending by the first server, in response to the modification content acquisition instruction, the update message to the second server, to enable the second server to send the update message to the client device of each user. receiving (101, 201) by the first server, first text information sent by a second server; generating (102, 202) by the first server, second text information based on the first text information; updating (103, 203) by the first server, in response to receiving an editing instruction sent by a client device of a user, the second text information; and sending (104, 204) by the first server, updates of the second text information to a client device of each user being in communication connection with the first server, to enable the client device of each user to update the first text information according to the updates, characterized in that, the first text information comprises a mail draft, and the second text information comprises a shared document, the first server is a document server, and the second server is a mail server, and after updating, in response to receiving the editing instruction sent by the client device of the user, the second text information, the method further comprises: acquiring, by the first server, an update message by intercepting a preset number of words in the updates of the shared document, and adding the update message to a message queue of editing content; receiving, by the first server, a modification content acquisition instruction sent by the second server, wherein the modification content acquisition instruction is generated when the second server detects that the update message is added to the message queue of the editing content; and sending by the first server, in response to the modification content acquisition instruction, the update message to the second server, to enable the second server to send the update message to the client device of each user. acquiring, by the first server, an update message by intercepting a preset number of words in the updates of the shared document, and adding the update message to a message queue of editing content; receiving, by the first server, a modification content acquisition instruction sent by the second server, wherein the modification content acquisition instruction is generated when the second server detects that the update message is added to the message queue of the editing content; and sending by the first server, in response to the modification content acquisition instruction, the update message to the second server, to enable the second server to send the update message to the client device of each user.