A screen projection method, comprising: determining, in response to a meeting screen projection request of a user, at least one candidate meeting reservation notification that meets a preset condition from current meeting reservation notifications of the user; obtaining and displaying meeting prompt information corresponding to each candidate meeting reservation notification, the obtaining includes identifying keywords of a meeting address in the candidate meeting reservation notification according to word recognition and Natural Language Processing technologies; and obtaining and displaying meeting address information based on a preset database matching the keywords of the meeting address; obtaining a first screen projection code corresponding to the meeting prompt information, the obtaining comprises one of: sending the meeting prompt information to a server, and obtaining the first screen projection code corresponding to the meeting prompt information fed back from the server and determining the first screen projection code corresponding to the meeting prompt information by querying a local database; and performing, in response to detecting a selection operation of the user for a target meeting prompt information of the meeting prompt information through a screen projection selection control and detecting an operation on triggering screen projection through a screen projection control, a screen projection connection with a screen projection device based on the first screen projection code and the target meeting prompt information, the method further comprising: after obtaining the first screen projection code, locking a meeting room corresponding to the first screen projection code, and displaying whether the screen projection device is turned on, wherein a screen projection connection processing is performed when the screen projection device is turned on, and a notification that the screen projection device is not turned on when the screen projection device is turned off. determining, in response to a meeting screen projection request of a user, at least one candidate meeting reservation notification that meets a preset condition from current meeting reservation notifications of the user; obtaining and displaying meeting prompt information corresponding to each candidate meeting reservation notification, the obtaining includes identifying keywords of a meeting address in the candidate meeting reservation notification according to word recognition and Natural Language Processing technologies; and obtaining and displaying meeting address information based on a preset database matching the keywords of the meeting address; obtaining a first screen projection code corresponding to the meeting prompt information, the obtaining comprises one of: sending the meeting prompt information to a server, and obtaining the first screen projection code corresponding to the meeting prompt information fed back from the server and determining the first screen projection code corresponding to the meeting prompt information by querying a local database; and performing, in response to detecting a selection operation of the user for a target meeting prompt information of the meeting prompt information through a screen projection selection control and detecting an operation on triggering screen projection through a screen projection control, a screen projection connection with a screen projection device based on the first screen projection code and the target meeting prompt information, the method further comprising: after obtaining the first screen projection code, locking a meeting room corresponding to the first screen projection code, and displaying whether the screen projection device is turned on, wherein a screen projection connection processing is performed when the screen projection device is turned on, and a notification that the screen projection device is not turned on when the screen projection device is turned off.