The invention provides a method and a device for batch generation of alarm information and belongs to software development technology. The invention aims to solve the problems of low matching efficiency and low speed of alarm information generation methods. The method comprises the steps that a first task and a second task are established; the first task receives data for alarm in each information log and unique identifiers of log data, and the data for alarm and the unique identifiers of log data are written in a buffer area; the second task searches the buffer area according to set time and acquires the data for alarm from the buffer area, and a regular expression is employed for matching the data for alarm; if the matching is successful, the data for alarm in the buffer area is determined as alarm information; unique identifiers of log data corresponding to the alarm information are acquired from the buffer area; a database is updated according to the unique identifiers of log data corresponding to the alarm information, and the data for alarm and the unique identifiers of log data, corresponding to the alarm information, in the buffer area are deleted.