The invention relates to a lubricating system for an electronic continuously variable transmission of an electric vehicle. The lubricating system comprises lubricating oil and an oil pump, the lubricating oil is arranged in a transmission case, a differential is positioned in the lubricating oil, the oil pump is respectively connected with the lubricating oil and a spindle through pipelines, and a plurality of oil holes are radially arranged on the spindle. Preferably, the oil holes include first oil holes and second oil holes, and a planetary structure is positioned among the first oil holes and the second oil holes. The oil pump is arranged outside the transmission case, placed on the transmission case and connected with the lubricating oil through a filter pipeline, an overflow valve is parallelly connected with the pipeline for connecting the oil pump with the spindle, both an oil retaining rib and an oil guide groove are mounted on the inner wall of the transmission case, and the oil retaining rib is communicated with a position needing lubricating through fluids of the oil guide groove. The lubricating system is ingenious in design, simple in structure and suitable for large-scale popularization and use, can be matched with the structure of the electronic continuously variable transmission, and has the advantages that lubricating effects are fine, transmission efficiency is not affected, and the weight of the transmission is not increased.