Through the experiment, in the same proportion, add the synthesis of high performance polycarboxylate superplasticizer RAWY-101 in cement concrete mix different brands, performance of concrete mixture, to explore the practical application of the effect of water reducing agent dosage on the performance of the cement mixture. The results show that, when the dosage of high performance water reducing agent RAWY-101 is 0.9% of the cement, In different brands of cement in concrete, strength of C50 is the fastest development.