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As a new kind of metastable material, Ti-based bulk metallic glass has guite a lot excellent properties, which opens a new field for the application of titanium alloy. Composition design principle and processing methods for Ti-based bulk metallic glass have been introduced, and mechanical properties and fracture mechanism of Ti-based amorphous alloy and its composite has been reviewed. The results show that Ti-based bulk metallic glass exhibits high fracture strength; high elastic-strain with certain plastic elongation, and plasticity elongation for bulk metallic glass at room temperature with nano-precipitation in the glass matrix is significantly improved. The existing problems, hot points for research and application potential of the alloys are discussed furthermore.