The invention relates to an energy-saving-type landscape lamp with a mosquito-killing function and based on Internet of things. The energy-saving-type landscape lamp comprises a base, a lamp pole andtwo illumination devices, and the two illumination devices comprise illumination mechanisms and mosquito-killing mechanisms; each illumination mechanism comprises a side rod and a lamp shell, each lamp shell is internally provided with an illumination assembly, and each illumination assembly comprises a first lamp pipe, a second lamp pipe, a switching mechanism, two first contact points and two second contact points; and each switching mechanism comprises a driving assembly, a moving rod, a first supporting plate and a second supporting plate, and each mosquito-killing mechanism comprises a moving assembly, an air sucking shade, an air sucking pipe and an air sucking box. According to the energy-saving-type landscape lamp with the mosquito-killing function and based on the Internet of things, switching of the first lamp pipe and the second lamp pipe is achieved through the illumination mechanisms, due to the fact that the power of the first lamp pipes is smaller than that of the secondlamp pipes, energy consumption of equipment can be reduced through illumination of the first lamp pipes when no people exist, and the energy-saving effect is achieved; and not only that, mosquitoes under the lamp shells can be killed through the mosquito-killing mechanisms, so that the equipment restores the lighting brightness, and the practicality of the equipment is improved.