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In this study, α-TCP was added into α-CSH with a ratio of 0, 5%, 10%, 15%, 20% and 25%, respectively. The solid material was combined with four kinds of prepared curing liquid, which were 0.9% NaCl solution, 2.5% Na2HPO4 solution, 7% citric acid solution and a mixture solution of 2.5% Na2HPO4 and 7% citric acid. The regulatory properties of α-CSH/α-TCP were studied by changing factors. The composite material was observed by scanning electron microscopy and X-ray diffraction, besides, the tests of setting time, mechanical properties and degradation performance were done. The effect of the change of α-TCP content on the properties of bone cement based on α-CSH was explored. Furthermore, the influence of the solidifying liquid on the properties of α-CSH/α-TCP cement was discussed when the content of α-CSH and α-TCP was constant. The results showed that the degradation performance of α-CSH/α-TCP was improved compared to pure α-CSH-based bone cement after adding α-TCP with an average particle diameter of 0.21 μm to calcium sulphate-based bone cement. With the increase of α-TCP content, the curing time was prolonged, and the mechanical property was gradually weakened. When the content of α-TCP was 15%, the addition of Na2HPO4 and CA could prolong the setting time of α-CSH/α-TCP, but the compressive strength of the composite with Na2HPO4 as the solidifying liquid was significantly higher than that of the composite materials of α-CSH/α-TCP and other solidifying liquids. The addition of α-TCP, as well as different curing liquids could adjust the mechanical properties, setting time and degradation rate of the composite bone cement to a certain extent, and provide experimental basis for the clinical application of bone repair materials. [ABSTRACT FROM AUTHOR]