An image forming apparatus is disclosed. The image forming apparatus includes a toner supplying device (60Y), a toner container (32Y), and a developing device (5Y). The toner supplying device (60Y) supplies toners stored in the toner container (32Y) to the developing device (5Y). The toner supplying device (60Y) includes a toner tank (61Y) which stores toners discharged from the toner container (32Y), a toner carrying section (62Y, 63Y) which carries the toners stored in the toner tank (61Y) in an obliquely upward direction, and a toner dropping route (64Y) which causes the toners carried by the toner carrying section (62Y, 63Y) to drop into the developing device (5Y) by toner own weight. The toner carrying section (62Y, 63Y) controls an amount of the toners to flow into the toner dropping route (64Y).