The invention discloses a method for treatment of hydrogen sulfide in an oil well. The method comprises the following steps that (1) a hydrogen sulfide treatment technological pipe column is placed down; (2) a sodium hydroxide solution is used for well washing firstly, and then water is used for well washing; (3) a water reagent is used, and the water absorbing index is figured out under the pressure intensity of 18 MPa; (4) a sulfate reducing bacterium inhibitor solution is injected in a squeezed mode, water is injected for substituting, and the treatment radius of the oil well is 2-4 m; (5) a tetrakis hydroxymethyl phosphonium sulfate (THPS) bactericide solution is injected in a squeezed mode, and water is injected for substituting; and (6) the well is closed to conduct reaction for 10 days, and the well is opened to conduct normal production. According to the method for treatment of the hydrogen sulfide in the oil well, hydrogen sulfide gas and ferrous sulfide scale can be effectively eliminated, growth of sulfate reducing bacteria in a stratum can be effectively inhibited, and thus the oil can recover normal production; and the blank that due to water injection, the hydrogen sulfide content of the stratum exceeds the standard, and treatment is conducted is filled up, and the method has the advantages of being simple, high in operability, effective, practical and the like.