Internet of things data off-peak uploading method and system

The invention discloses an internet of things data off-peak uploading method and system, and the method comprises the steps: determining a set C0 of all terminal equipment connected with a server and a set C1 of terminal equipment needing to adjust a working time period, and the adjustment working time period T comprises the minimum working starting time T1 and the maximum working starting time T2; removing the terminal device set C1 from the all terminal device set C0 to obtain a terminal device set C2 of which the working time period does not need to be adjusted, and obtaining the number Davg = C0/(T2-T1) of online working terminal devices in each minute under an ideal condition; and starting to iteratively and circularly adjust the terminal equipment set C1 until the working starting time corresponding to all the terminal equipment in the terminal equipment set C1 is adjusted. According to the method, peak congestion caused by uploading the equipment data to the server is avoided, the working parameters of