The invention discloses an Internet of Things management system for a smart park. The system comprises a total database, a sign-in database, a recharging database, a positioning database, an ID card recognition unit, a gate unit, a control module, a recharging unit, and an ID card, and the internal part of the total database is provided with the sign-in database, the recharging database, and the positioning database. The ID card recognition unit and the sign-in database are connected with each other, the recharging unit and the recharging database are connected with each other, and the positioning database and the ID card are wirelessly connected with each other. According to the system, the ID card is identified through the ID card recognition unit, irrelevant personnel can be effectively prevented from entering the park, meanwhile, the gate unit of the park is identified to be opened and closed, meanwhile, the body temperature of the personnel entering the gate unit is detected through the temperature measurement unit, personnel with too high body temperatures are prevented from entering the park, the ID card has a real-time positioning function, and wireless signals sent by the ID card are monitored through the positioning module.