According to the invention, there is provided a novel soybean variety, designated XB10L04. This invention thus relates to the seeds of soybean variety XB10L04, to the plants of soybean XB10L04, to plant pads of soybean variety XB10L04 and to methods for producing a soybean plant produced by crossing soybean variety XB10L04 with another soybean plant, using XB10L04 as either the male or the female parent. This invention also relates to methods for introducing a transgene into soybean variety XB10L04 and plants produced by said methods.