The utility model discloses a remote power management device based on a 4G network, and the device comprises mobile communication equipment, a 4G communication module, a controller, and a power conversion chip. The mobile communication equipment is connected with a 4G communication module through the 4G network, and the 4G communication module is in communication connection with the controller. A power control input end of the controller is connected with a solar cell and a storage battery, and a power control output end of the controller is connected with a power input end of the power conversion chip. A power output end of the power conversion chip is connected with a plurality of peripherals and a power input end of a main control board. The device completes the management of a system power supply of on-line detection and monitoring equipment through the 4G network, is used for the remote control of power management of a cellphone, can transmits big data information through the 4G network, improves the utilization rate of the electric energy of solar cell panel of on-line equipment, and is low in energy consumption.