Sometimes, planting eco-concrete in engineering was prepared by using sulfoaluminate cement.But the planting eco-concrete was prepared by using sulfoaluminate cement remains two problems that the alkalinity is too high and the water absorption performance is too bad.Zeolite is a porous material and has adsorption performance for ions.The main ingredient of zeolite is SiO2 and A12O3, so zeolite dont contain alkali.This paper was investigated the influence of zeolite on the performance of sulfoaluminate cement used in planting eco-concrete.This paper aimed to reduce the alkalinity and increase the slow-release performance of the planting eco-concrete by using zeolite.X-ray diffraction analysis, search engine marketing and mercury porosimetry were used to determine the mineralogical compositions, micropattem and porosity of sulfoaluminate cement hydration products.The results showed that zeolite increased the water requirement of cement normal consistency and reduced the alkalinity of hardened sulfoaluminate cement pastes.When the dosage of zeolite reaches 30%, the alkalinity of 3d hardened sulfoaluminate cement pastes reduced 20% compared with the pure hardened sulfoaluminate cement pastes ,which due to with the increasing dosage of zeolite, calcium hydroxide produced by hardened sulfoaluminate cement would be reduced.The relative density of hardened sulfoaluminate cement pastes decreases with the dosage of zeolite increasing, which improves the water absorption performance of hydrated cement pastes and the environment of plant growth.