The influence of prepared silicate on properties of traditional sticky rice-lime mortar and their scientific mechanism are discussed by means of SEM, XRD, and FTIR. Results indicate that silicate are effective to increase the hardness, compressive strength, freezing-thaw resistance and water resistance of sticky rice-lime mortar significantly. The sticky rice-lime mortar with prepared silicate, overall properties of the prepared silicate-sticky rice-lime mortar are very good. Compared with pure sticky rice-lime mortar, the 66 d compressive strength of prepared silicate-sticky rice-lime mortar is 1.45 MPa, and the freeze-thaw resistance and water resistance increase by 133.3% and 43.8% respectively. Formation of tobermorite is possible to account for the good mechanical property of sticky rice-lime mortar with silicate.