Abstract: A pump structure for dispenser includes a base having a space defined therein and passing therethrough. The base has a vertical groove axially defined in an outer periphery thereof and a plurality of horizontal grooves parallelly defined in the outer periphery thereof and communicated with the horizontal grooves. A base ring is sleeved on the base. The base ring has a protrusion extending from an inner periphery thereof for slidably moving in the vertical groove and the horizontal groove. A saddle head is movably sleeved on the base. An upper valve set is mounted in a pathway in the saddle head and a lower valve set is mounted in the space in the base.