The invention discloses an intelligent photo-electrical direct reader, comprising a single chip, a communication interface component, a DC supply component, and a plurality of photo-electrical sensingdecoder components, which are composed of plural pairs of photo diodes and light-emitting tubes, plural photo-electrical sensor components; an RC vibrator in the single chip is used as a system clock, the method of modifying an OSCCAL register data which is used for marking the RC vibrator is used for marking the RC vibrator, the photo diode and the light-emitting tube of each photo-electrical sensor component are supplied by the port of the single chip independently, the public end of the photo-electrical pair tube at the position corresponding to the photo-electrical sensing decoder components is controlled by the port of the same single chip, the measurement data (ADC) is processed by concrete quantized method, the external light of the photoelectric sensor as well as the electric property state of the actual measured sensing signal and the pair tube of the photoelectric sensor are scanned and measured, '0' and '1' logic level comparison threshold values can be adjusted dynamically, when the state of the photoelectric sensor is wrong, the code redundancy compensation algorithm can be initiated to correct the data, after the data information is processed by validation algorithm,different addresses are stored as back-up; the direct reader of the invention has the characteristics of high disturbance resisting capacity and low cost.