The invention relates to the fields of internet of things, intelligent control and the like, in particular to an intelligent control system for street lamps based on the internet of things, comprisinga main control device, a street lamp control device and a sensor, and further comprising a control module, a daylight environment module and an emergency module. The control module comprises a control unit and an information unit. The daylight environment module comprises a daylight orbit unit and a deviation value unit. The emergency module comprises a holiday unit and an emergency unit; According to the time data recorded by each unit, the main control device calculates the turning on and off time of the street lamps controlled on the same day, and controls the turning on or off of the street lamps through the street lamp control device. The invention saves a large amount of human resources, realizes the full automatic intelligent control of the street lamp system, and can execute the street lamp control according to the emergency plan when various emergencies and emergencies occur. The system is more accurate, efficient, and reliable and saves a large amount of electric power resources through the program intelligent control.