According to the invention, there is provided a novel soybean variety designated XB18M07. This invention thus relates to the seeds of soybean variety XB18M07, to the plants of soybean XB18M07 to plant parts of soybean variety XB18M07 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB18M07 with another soybean plant, using XB18M07 as either the male or the female parent.