Foam concrete has a broad application prospect due to its lightweight, convenient construction and other characteristics. However, the low strength and tensile toughness limit the application range of foam concrete. In this study, re-dispersible latex powder and polypropylene fiber were used to improve the mechanical properties of foam concrete. The effects of re-dispersible latex powder and polypropylene fiber on the compressive and tensile properties of foam concrete were studied. The results showed that compared with ordinary foam concrete, the combination of re-dispersible latex powder and polypropylene fiber increased the energy absorption capacity, ductility index and tension compression ratio of foam concrete by 13.4 %, 5024.6 % and 190.7 %, respectively. The bio-membrane formed by the hydration of re-dispersible latex powder improves the internal pore structure, which can cooperate with polypropylene fiber to optimize the crack growth behavior and ductility of foam concrete, thereby improving the compression and tensile properties of foam concrete.