Abstract: In order to investigate the biaxial flexural behaviors of basalt fiber textile reinforced concrete (BFT/PC) slab, an aging test on basalt fiber textile was carried out first to evaluate the alkaline resistance(AR) of the textile by means of morphological changes of the yarns and tensile breaking strength retention ratio of the textile before and after corrosion in alkaline solution. Then a two-way slab test was conducted to study the influence of textile layers, concrete cover thickness and macro polypropylene (PP) fiber on the flexural behaviors of the BFT/PC slabs. The results show that tensile breaking strength retention ratios of the basalt fiber textile in the warp and weft directions are 63% and 73%, respectively, and the retention ratios are slightly less than those of the AR-glass fiber textile, indicating good alkaline resistance of basalt fiber textile. The reduced concrete cover thickness is capable of enhancing the residual load capacity under the prescriptive deflection in serviceability limit state. In addition, the residual load capacity under the prescriptive deflection in serviceability limit state, ultimate load bearing capacity and toughness are evidently enhanced with increasing of the textile layer number and PP fiber content, and these values of BFT/PC slab with 8 kg/m³ PP fibers are increased by 1.40 times, 0.36 times and 5.10 times in comparison with those of BFT/PC slab without fiber reinforcement. The attempt of using steel-free reinforcements (i.e. macro PP fiber and basalt fiber textile) in concrete members in this experiment paves a new path for infrastructure construction in the marine engineering and offshore erosion environment.