The invention relates to a hydrogenation coking method by adding coking distillate oil in residual oil. According to the invention, coking distillate oil and the coking raw material residual oil are mixed according to a weight ratio of 0.2:0.4; the mixture is preheated in a heating furnace convection section, and is delivered into a buffering tank; the mixture is heated into a heating furnace radiation section and is heated to a coking temperature; the mixture is coked in a coking tower. A reaction tower inlet temperature is 480-520 DEG C, and a pressure is 0.1-1MPa. The coking distillate oil is selected from coking diesel, coking middle-section distillate, coking light gas oil, coking heavy gas oil, or a mixture thereof. According to the invention, because the coking distillate oil is rich in benzo cycloalkane ring, the coking distillate oil can be adopted as a hydrogen donor. Therefore, furnace pipe coking and production of shot coke can be inhibited, coke yield can be reduced, and liquid distillate oil product yield can be improved.