The invention discloses a method and a device for automatically generating a data analysis report. The method comprises the steps of preparing data, processing the data, generating a report template, generating a report, reviewing the report, and meanwhile, starting a task tracking mechanism to carry out task tracking on the steps of processing the data, generating the report template and generating the report so as to form a log. The device comprises a data calculating module, an uploading module, a data processing module, a template generating module, a data migration module, a log module, an auditing module and a report modification module. The method and the device provided by the invention can be used for nuclear piping mechanical analysis, under the premise that various working conditions meet an RCC-M standard and related quality guarantee requirements, through building a nuclear piping mechanical analysis report intelligent production system, a mechanical calculation result produced by SYSPIPE software is subjected to data mining, data correction and data migration operation, and a nuclear piping mechanical analysis report meeting the design quality guarantee requirement is intelligently generated, so that the work efficiency and the quality of a nuclear piping design are improved.