The molecular structure and mechanism of polycarboxylate superplasticizer and naphthalene superplasticizer are different.We add polycarboxylate superplasticizer and naphthalene superplasticizer respectively into the anti-freezing concrete with the air entraining agent of rosin thermal polymer,test the properties of fresh concrete,compressive strength and freezing resistance,observe the pore characteristics and microstructure of hardened concrete,and analyze and compare the effects of polycarboxylate superplasticizer and naphthalene superplasticizer on various properties of concrete.The results show that polycarboxylic superplasticizer has many advantages over naphthalene superplasticizer.It can be used to prepare concrete with low water-binder ratio under the condition of low dosage,and can be applied to anti-freezing concrete.