The invention provides a method for deolefination non-hydrofining of a xylene fraction in reformate. The method is characterized by comprising the following steps that the reformate passes through a xylene fractionation tower and a tower top reflux tank, then enters a xylene deolefination refining reactor and undergoes deolefination under the process conditions of high space velocity, high temperature, low pressure and absence of hydrogen; and refined xylene enters the xylene fractionation tower and is mixed with crude xylene, and then xylene is extracted from the tower top reflux tank, so a xylene product with a bromine index meeting requirements is obtained. The method in the invention overcomes the problems of short running time of clay or catalysts and great carbon deposition loss in conventional xylene production methods; and on the basis of small equipment revamping, the method prolongs the service cycle of a catalyst and effectively reduces investment and energy consumption of equipment, thereby producing good comprehensive benefits.