A liquid administration device includes: a cylindrical body filled with liquid a needle tube configured to communicate or be communicable with the cylindrical body at its tip side, and to have a sharp needle tip a gasket configured to slide within the cylindrical body an operation member configured to to discharge the liquid by pressing the gasket toward the tip direction a cover member configured to be capable of moving to a first position, in which at least the needle tip is covered, to a second position, in which the needle tip is exposed, and to a third position, in which at least the needle tip is re-covered and a cover member that can move from the first position to the second position to a third position to re-cover the needle tip.
