The invention particularly relates to ribavirin pharmaceutical composition for injection, its preparation method and application thereof. The raw materials of ribavirin injection include: ribavirin, activated carbon and water for injection; the preparation steps of ribavirin injection are as follows: (1) will be called according to the prescription the amount of related raw materials, (2) for liquid-concentration, first into the concentrated tank to add water for injection, then add ribavirin and stir to dissolve, then add activated carbon, and heat to boil for 15 min; (3) with titanium filter Recirculating and removing carbon from the liquid; (4) Performing the dosing of the solution, adding the water for injection to the filtered liquid to the configured amount, adjusting the pH of the solution to a suitable range, and performing the relevant quality indicators of the liquid Testing; (5) conducting the liquid medicine for testing the qualified liquid; (6) entering the semi-finished product after the potting sterilize. The ribavirin injection prepared by the preparation method of the invention. has the advantages of high purity, less impurities, single component, good stability and good drug effect.