Abstract: In order to study the low-velocity impact performance of basalt fiber reinforced polymer (BFRP) tendon, the drop-weight impact test of the BFRP tendon was conducted to examine the low-velocity impact response under different pretension ratios (2%, 10%, 20%, and 30%) and impact energies (12.76 -31.90 J). Meanwhile, the residual tensile loading capacity of the incompletely broken specimens was further measured. Experimental results indicate that the failure modes of BFRP tendon include resin failure on the impact side, partial fracture of the fiber and complete fracture of the BFRP tendon. Under 19.14 J impact energy, the failure mode of the BFRP tendon changes from resin failure on the impact side to partial fracture of the fiber when the pretension ratio is increased from 2% to 10% and 20%. Meanwhile, the applied pre-tension enhances energy consumption, but the influence on the peak force is minimal. When the BFRP tendon is not completely broken, the residual deformation, energy consumption and the impact contact time of the specimen are negatively related to the pretension ratio. When the BFRP tendon is completely broken, the residual deformation of BFRP tendon decreases with the pretension ratio while the energy consumption and impact time first increases and then decreases with the pretension ratio. And the residual tensile loading capacity of the BFRP tendon decreases with the increase of impact energy. The impact damage level of BFRP tendon can be appropriately assessed with both the residual tensile loading capacity and the ratio between energy consumption and total impact energy (energy absorption ratio) of the specimen. The results of this study can provide important reference for the impact resistance design of the pre-tensioned BFRP tendon.