Abstract: A spring water pump comprising: a housing sealably connected to a water container and having a sealing member for sealing the connected portion between the water container and the housing; a pressure member of bellows type located inside the housing, the pressure member being compressed by an user's pressing action and expanded by its restitutive force; a push cap having an upper portion exposed over the housing and a lower portion positioned on the pressure member, the push cap pressed down by the user's pressing action; a connecting pipe for drawing up spring water from the water container; a discharging pipe for discharging spring water pumped upwardly through the connecting pipe; and guiding means for guiding vertically smooth sliding of the push cap in the housing. By the guiding means, the push cap can smoothly slide in the housing under any pressure condition, and the user can easily push the push cap by small power.