Repetition Blindness（RB）refers to the phenomenon that in a rapid serial visual presentation ,if there are two identical stimuli, the second repeated stimulus is difficult to be detected. There have been many studies about RB have been involved，such as the influential factors RB , The reason of occurring RB, and so on. Many hypothesis and theory about the cause of repetition blindness were put forward: Token individuation hypothesis, Type refractoriness hypothesis, Memory failure, ‘Construction / attribution’ framework and Competition hypothesis. Token individuation hypothesis, Type refractoriness and Competition hypothesis insisted that RB was a perceptual failure phenomenon in on-line processing, but Memory failure hypothesis suggested that RB was a phenomenon of off-line failure of memory, while the ‘construction / attribution’ framework thought that RB effect can happen during either perceptual processing or memory processing. RB can be found in many experimental materials, but the most common materials used in RB research were words. Some researchers have explored RB based on the characteristic of Chinese characters in China in resent years. The present study examined repetition blindness effect on the level of Chinese character radical. Chinese characters selected Chinese characters radicals with left-right structures or containing relationship were used as the experimental material in two experiments. Experiment 1 explored whether the position effect could affect RB effect if two key stimuli R1 and R2 shared the same radical. There were four experimental conditions: R1 and R2 were identical; R1 and R2 were different; the same radicals of R1 and R2 both were in same positions; the same radicals of R1 and R2 were in different positions. The result of experiment 1 showed that the repeated blind effect of the different conditions existed significantly differences, F（3，34）=19.78，p=0<0.01,η2 =0.64,but there is no significant difference between RB of identical position condition and different position condition, RB strength values of them, however, were significantly smaller than the identical conditions, and greater than the different conditions. Experiment 2 explored how robust RB effect was in the condition of two key stimuli R1 and R2 had a containment relationship. That one key stimulus, a single character, was the radical of the other, a compound character were used as the experimental materials in Experiment 2. The result of experiment 2 showed that the repeated blind effect of the different conditions existed significantly differences as same as Experiment 1, F(3,38)=53.02, p=0<0.01,η2 =0.81, and there was significantly more robust RB effect in the condition which R2 were the single characters, the radical of R1, than one which R2 was the compound character. But same as Experiment 1, RB strength values of R2, whether the single characters, or the compound characters, both were smaller than ones of the identical conditions, and greater than ones of the different conditions. The research conclusion was that the repetition blindness effect is affected by the different characteristics of the Chinese character radicals. It suggested that repetition blindness phenomenon is likely to occur in online perceptual processing.