A calcium-based bone cement formula having a powder component and a setting liquid component with a liquid to powder ratio of 0.20 cc/g to 0.50 cc/g is provided, wherein the powder component includes tetracalcium phosphate. The bone cement formula further contains, based on the total weight of the bone cement formula, 0.01-1% of poly(acrylic acid) having a repeating unit of -(CH2-C(COOH)H)n-, wherein n = 50 - 50000.本發明提供了一種具有粉末組分和凝固液體組分的鈣基骨水泥製劑,其中,液體與粉末的比率為0.20 cc/g至0.50 cc/g,所述粉末組分含有磷酸四鈣。該骨水泥製劑進一步含有以所述骨水泥製劑的總重量為基準0.01-1%的一具有-(CH2-C(COOH)H)n-重複單元的聚丙烯酸,其中n=50-50000。
