The utility model relates to an electricity information visualization measuring system and a measuring device. The system comprises a household intelligent terminal and the measuring device, wherein the household intelligent terminal and the measuring device are connected in a communication mode. The measuring device comprises a mixing signal processor, an alternating current sampling module, a relay module, a wireless communication module, a storage module, a display module and a power source module, wherein the alternating current sampling module, the relay module, the wireless communication module, the storage module, the display module and the power source module are respectively connected with the mixing signal processor in the communication mode. When the electricity information visualization measuring system and the measuring device are used, electric equipment is connected with the alternating current sampling module of the measuring device, the alternating current sampling module samples electricity information of the electric equipment in real time, and sampled signals are input into the mixing signal processor. After data are processed, a processing result can be directly displayed through the display module, and simultaneously the processing result can be sent to the household intelligent terminal through the wireless communication module. Therefore, a user can visually master electricity consumption situation information of the electric equipment in each period of time in real time, take corresponding energy saving measures and achieve the visualized intelligent power consumption process, and therefore the electric power consumption is greatly lowered.