A floor cleaner has a base assembly which comprises a body composed of an upper casing and a lower casing, a sweeping member mounted on the front side of the body, a steam generating member mounted at the rear side of the body, a pad tray with protrusions formed thereon to which a pad is attached, the protrusions made of a material that is softer than the material of the pad tray, and an attachment/detachment member that attaches and detaches the pad tray to and from the bottom face of the lower casing.