A ratchet wrench with efficient driver changing function includes a wrench body having a head and a handle, a first slot passing through the first side and connected with a second slot; a ratchet ring, rotatable disposed in the first slot and having a polygonal inner hole for receiving a driver; a direction switching member, disposed in the second slot and having a rotating operation mode and a pressing operation mode; a ratchet block, disposed between the first slot and the second slot that when the direction switching member is at the rotating operation mode, the ratchet ring is driven unidirectionally; a top lid, fixed on the head; and a position limiting plate disposed between the top lid and the head that when the direction switching member is at the pressing operation mode, the position limiting plate engages or disengages the driver.