A toner supplying device and an image forming apparatus that supply toner stably and do not impose a stress on toner, regardless of a remaining amount of toner stored in a storage container of the toner supplying device are provided. Two flexible sheets constituting a toner scooping blade are bonded to each other with a double-sided adhesive tape that functions as a spacer and an adhesive member sandwiched therebetween at an end fixed to a blade support neck and the other end in contact with an inner wall of the toner storage container. Whereby, a gap is formed between the two flexible sheets.