According to the invention, there is provided a novel soybean variety designated XB25G06. This invention thus relates to the seeds of soybean variety XB25G06, to the plants of soybean XB25G06 to plant parts of soybean variety XB25G06 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB25G06 with another soybean plant, using XB25G06 as either the male or the female parent.