In order to study the effects of three different soil conditioners and their compatibilities on rice growth physi-ology and cadmium absorption, a random block design was used and a total of 4 treatments were set up: CK (conventional fertilization), T1 (conventional fertilization + cytokinin producing bacteria agent), T2 (conventional fertilization + cytokinin producing bacteria agent + Miscanthus lutarioriparius biochar), T3 (conventional fertilization + cytokinin producing bac-teria agent + Miscanthus lutarioriparius biochar + active silicon). Therefore, we can study the e.ects of microbial biochar soil conditioners on the growth physiology and cadmium uptake of rice variety Huanghuazhan in cadmium-contaminated soil. The results showed that the net photosynthetic rate of.ag leaves at the heading stage of rice treated with T1,T2 and T3 was higher than that of CK, of which the net photosynthetic rate of T3 reached 17.67 μmol/(m2?s); catalase activity and su-peroxide dismutase activity and root vitality were significantly higher than the control. The relative yield of each treatment is significantly different from that of CK, and the order of size is T3>T2>T1>CK. The relative yield of each treatment was signi.cantly di.erent from that of CK, and the order of magnitude was T3>T2>T1>CK. Compared with that of CK, the in-creased yield percentage of T1,T2 and T3 treatments was in the range of 20.07% to 27.94% at mature stage. The cadmium content of rice stem and grain were in the order of CK>T1>T2>T3. The grain of T3 was as low as 0.20 mg/kg to grow soil of 1.84 mg/kg cadmium content. In conclusion, microbial and birchar soil conditioners could enhance the capacity of rice physiological resistance, root activity and bacterial diversity, improve the photosynthesis at heading stage, increase the plant height and relative yield at mature stage, reduce the grain cadmium content and cadmium translocation coe.cient from stem to grain, therefore improve the grain quality. Moreover, the application effect of multi-component solid soil conditioner is better than that of single soil conditioner. The results of these studies can provide a certain theoretical basis for the research on the application technology of safe production of rice in cadmium-contaminated areas.