A novel soybean variety, designated 5PSGM88 is provided. Also providedare the seeds of soybean variety 5PSGM88, cells from soybean variety5PSGM88, plants of soybean 5PSGM88, and plant parts of soybean variety5PSGM88. Methods provided include producing a soybean plant by crossingsoybean variety 5PSGM88 with another soybean plant, methods for introgressinga transgenic trait, a mutant trait, and/or a native trait into soybean variety5PSGM88, methods for producing other soybean varieties or plant parts derivedfrom soybean variety 5PSGM88, and methods of characterizing soybean variety5PSGM88. Soybean seed, cells, plants, germplasm, breeding lines, varieties,and plant parts produced by these methods and/or derived from soybean variety5PSGM88 are further provided.
