The invention provides a plastic optical fiber electric power meter reading system, and belongs to the field of transmission of digital information on electric power lines. The plastic optical fiber electric power meter reading system has strong electromagnetic interference resisting and nuclear radiation resisting capabilities as well as reliable performance, and achieves low cost and high-speed transmission of data. The plastic optical fiber intelligent electric power meter reading system is composed of an optical transmitter, an optical receiver, plastic optical fiber, a data joint device, a data concentrator and a plurality of passive devices, wherein an electric meter signal (such as a Transistor-Transistor Logic (TTL) level signal) of the optical transmitter drives an optical signal, the optical signal is coupled to the plastic optical fiber and transmitted to the optical receiver through the plastic optical fiber, the light receiver restores the optical signal to the electric signal (such as a TTL level signal), and data processing is carried out by the data concentrator to finish the whole process of POF (plastic optical fiber) intelligent electric power meter reading. The meter reading system has the advantages of excellent electromagnetic interference resistance, high reliability, strong confidentiality, high sensitivity, smaller volume, simpleness in preparation, low cost, waterproof and moisture-proof properties and long service life.