Why do some Fuzhou subway stations have strict security checks?

Because of increased security awareness. In order to better maintain the safe operation of rail transit, the security inspection level of Fuzhou Metro has been upgraded in accordance with the requirements of the public security organs. During the upgrade of subway security levels, Fuzhou Metro's entire network will strictly prevent dangerous items and dangerous people from entering the station and boarding the train, and strictly implement the requirement of "security inspection for everyone and inspection for everyone". As for whether some are strict or not, it still depends on the implementation of the site security inspection.