The present invention discloses an atomizer which can be refilled from its distal end, the atomizer includes an atomizing device and a filling device which are mounted on a bottle 1. An atomizing pump 3 is mounted on an opening of the bottle and a button 2 is mounted on the atomizing pump; the filling device comprises a base seat 4 and a filling needle 5, the base seat 4 is integrally formed on the bottom of the bottle, the filling needle 5 is mounted in the base seat. The filling needle comprises a filling needle body 6, a pair of sealing rings 7, 8 which are seated in grooves 13, 14, a spring 9, a locking ring 10 and sealing gasket 11 which secures the filling needle body in place by cooperating with a positioning step on the filling needle body. A gasket is located at the bottom of the needle body which is pressed into a countersink. Additionally the atomizer may have an exhaust pipe 16 mounted to a straight outlet 15. The atomizer pump may body may have a threaded arrangement and be sealed by a ring 23.