PURPOSE: A dental composite composition containing crystallized glass-ceramic is provided to manufacture a dental block for direct and indirect repairing materials with improved physical property. CONSTITUTION: A dental composite composition contains crystallized glass-ceramic, monomers and/or oligomers containing unsaturated double bond, a polymerization initiator, and nano-sized filler. The crystallized glass-ceramic is lucite glass-ceramic or lithium dicilicate glass-ceramic. The average particle diameter of the crystallized glass-ceramic particles is 0.2-4 um. The monomer with unsaturated double bond is a methylmethacrylate(MMA)-based monomer. The MMA-based monomer is a mixture of 2,2-bis-(4-(2-hydroxy-3-methacyloyl oxypropoxy)phenyl)propane(Bis-GMA) and triethylene glycol dimethacrylate(TEGDMA). The filler is an inorganic filler or/and organic filler.본 발명은 치과용 복합체 조성물로서, 결정화 글라스-세라믹, 불포화 이중결합을 포함하는 단량체 및/또는 올리고머, 중합을 개시하기 위한 중합 개시제, 및 나노 사이즈 필러를 포함하는 것을 특징으로 하는 치과용 복합체 조성물을 제공한다.