Preparation of high efficiency, high brightness red organic light emitting diode is the key to realize full color display, and high performance red organic light emitting diode device has a great significance for the study. This paper mainly studies the doping agent (DCJTB) concentration on red organic light emitting diode performance influence. In the experiment, using vacuum thermal evaporation method, the selection of structure for ITO/2-TNATA(20mm)/NPB(30 nm)/AlQ(50 nm)∶(X%)DCJTB／AlQ(30 nm)／LiF(0.8 nm)／Al(100 nm) red device, the organic thin film function material precise evaporation is realized, in high accuracy film thickness control instrument monitoring. Research shows that: red dopant doping concentration is 2.5%~3.0%, the 12 V voltage can be obtained under luminous intensity to a maximum of 8 900 cd/m2, luminous efficiency is more than 2.8 cd/A, and luminous spectral wavelength for 610~618 nm ideal red organic light emitting diode device.