A dropper of eye drops, comprising: an eye drop storage for storing the eye drops, which has an opening at the top and an eye drop outlet at the bottom; an elastic seal assembly installed inside the eye drop storage and forming a space for storing the eye drops together with the eye drop outlet; a pressing device installed at the top of the eye drop storage and configured to press the elastic seal assembly so as to compress the space for storing the eye drops, such that the eye drops are dropped out of the eye drop outlet; the inner wall of the eye drop storage is provided with a slot, and the elastic seal assembly comprises a cylindrical elastic extruder, the bottom of which has an opening and is hermetically inserted into the slot and the top of which is hermetical; a stopper is fixed on the inner wall of the eye drop storage and positioned above the elastic seal assembly and a through-hole is provided in the stopper, and the pressing device comprises: a lid positioned at the opening at the top of the eye drop storage, a pressing rod, one end of which protrudes downward from the through-hole, and the other end of which is fixedly connected with the lid, characterised in that the dropper further comprises a spring wrapping around the pressing rod and positioned between the lid and the stopper, the diameter of the spring being larger than that of the through-hole; a contracting neck is provided in the middle of the elastic extruder such that the elastic extruder is formed into a gourd-shaped structure in which the upper part serves as an extrusion portion and the lower part serves as a supporting portion; and a position-limiting annular block is fixedly provided at the top of the eye drop storage, and the lid is positioned below the position-limiting annular block. an eye drop storage for storing the eye drops, which has an opening at the top and an eye drop outlet at the bottom; an elastic seal assembly installed inside the eye drop storage and forming a space for storing the eye drops together with the eye drop outlet; a pressing device installed at the top of the eye drop storage and configured to press the elastic seal assembly so as to compress the space for storing the eye drops, such that the eye drops are dropped out of the eye drop outlet; the inner wall of the eye drop storage is provided with a slot, and the elastic seal assembly comprises a cylindrical elastic extruder, the bottom of which has an opening and is hermetically inserted into the slot and the top of which is hermetical; a stopper is fixed on the inner wall of the eye drop storage and positioned above the elastic seal assembly and a through-hole is provided in the stopper, and the pressing device comprises: a lid positioned at the opening at the top of the eye drop storage, a pressing rod, one end of which protrudes downward from the through-hole, and the other end of which is fixedly connected with the lid, characterised in that the dropper further comprises a spring wrapping around the pressing rod and positioned between the lid and the stopper, the diameter of the spring being larger than that of the through-hole; a lid positioned at the opening at the top of the eye drop storage, a pressing rod, one end of which protrudes downward from the through-hole, and the other end of which is fixedly connected with the lid, characterised in that the dropper further comprises a spring wrapping around the pressing rod and positioned between the lid and the stopper, the diameter of the spring being larger than that of the through-hole; a contracting neck is provided in the middle of the elastic extruder such that the elastic extruder is formed into a gourd-shaped structure in which the upper part serves as an extrusion portion and the lower part serves as a supporting portion; and a position-limiting annular block is fixedly provided at the top of the eye drop storage, and the lid is positioned below the position-limiting annular block.