It is intended to provide a sheet-form food containing soybean protein which contains unicellular soybean (a single cell product of soybean) as the soybean component; and a method of producing the sheet-form food containing soybean protein which comprises shaping dough containing the unicellular soybean into a sheet with the use of a drum dryer. In this food, the unicellular soybean in which soybeans are divided into single cells while remaining the cell wall is used. Since soybean cell wall remains without disruption, the odor and taste characteristic to soybean can be lessened. Moreover, this food can exert an additional effect that the useful components inherent in soybean (i.e. oil and fat, isoflavone, saponin, lecithin, dietary fiber and so on) can be used as such.