The invention relates to the technical field of radio frequency identification, and particularly relates to an RFID (Radio Frequency Identification) technology based automobile seat assembly first working position information reading and writing system. In order to overcome a problem that the whole production line cannot be timely matched with a sequential production system because high-frequency RFID tags are easy to cause a reading and writing failure in a complicated electromagnetic environment of a workshop in an actual production line assembly production environment, the invention provides an automobile assembly production line first working position assembly information reading, writing and checking method. Improvement is performed on a reading and writing mode of an information reading and writing system for an assembly product getting into the first working position, write-in of tag data is ensured through adding data checking after tag reading and writing, interruption or mismatching, which is caused by empty writing of a tag, of sequential production is avoided, normal running of the production line for sequential production is realized, and effective and reliable running of the production is guaranteed.