Abstract: In order to study the bonding performance between basalt fiber reinforced polymer (BFRP) bars and low alkalinity sulphoaluminate cement concrete, a total of 90 bonding specimens were tested by central pullout test. The effects of surface morphology of BFRP bars and concrete strength grade on the bonding performance were studied. The experimental results show that sand blasting, fiber winding and ribbed treatments on the surface of BFRP bars can significantly improve the bonding performance, the bond strength between deep ribbed epoxy resin BFRP bar and low alkalinity sulphoaluminate cement concrete with strength grade of 65 MPa is as high as 39.09 MPa, which is much higher than 13.32 MPa of smooth BFRP bar. The effect of strength grade on bond strength of BFRP bar/low alkalinity sulphoaluminate cement concrete is more obvious. In addition, the bonding performance between BFRP bars and low alkalinity sulphoaluminate concrete is higher than that of ordinary portland concrete. Finally, the CMR and mBPE models were used to fit the bond-slip (τ-s) curve of BFRP bar-concrete bond specimens. It is found that the fitting result of CMR model for the ascending segment of the bond-slip curve is better, which clearly and accurately reflects the bond-slip constitutive relationship between BFRP bar and concrete, and provides a key theoretical basis for investigating performance of BFRP-reinforced sulphoaluminate cement concrete structures.