The invention relates to (1,2,4)-triazolo-(4,3-b) (1,2,4)-triazine compounds which are of a novel structure and are shown in a formula (I) or formula (II), and a pharmaceutical salt, a prodrug, a hydrate or a solvate thereof, a preparation method of the compounds, a pharmaceutical composition containing the treatment effective dose of the compound and an application of the compound as a protein tyrosine kinase inhibitor, especially as a c-Met inhibitor, in the preparation of medicaments for preventing and / or treating c-Met abnormality-related diseases.