The invention relates to a safe and reliable energy-saving type LED yard mosquito killer lamp based on the Internet of Things. The safe and reliable energy-saving type LED yard mosquito killer lamp comprises a base, a lamp post, a lighting mechanism and a top plate. The lighting mechanism comprises supporting blocks, a cleaning mechanism, a lamp source and a mosquito killing mechanism. The mosquito killing mechanism comprises a power grid and two lifting assemblies. Each lifting assembly comprises a first motor, a buffering block, a first drive shaft and a sliding block. The cleaning mechanismcomprises a second motor, a cleaning pipe, a vertical rod and two cleaning blocks. A telescopic assembly is arranged in the cleaning pipe. According to the safe and reliable energy-saving type LED yard mosquito killer lamp based on the Internet of Things, the mosquito killing mechanism is used for controlling electrification of the power grid, the power grid conducts mosquito killing when the number of mosquitoes is large, then, the power grid is powered off, the electrification time of the power grid is shortened, and energy saving of equipment is achieved. In addition, after mosquito killing is finished, through the cleaning mechanism, brushes make contact with the power grid and are kept rotating, the mosquitoes on the power grid are swept away, cleanliness of the power grid is guaranteed, the power grid can be conveniently repeatedly used, and practicability of the equipment is improved.