Mechanical water level controller

The utility model relates to a mechanical type water level controller. The utility model is characterized in that a moving rod moving from top to bottom following a floating ball is penetrated through a sleeve barrel which is fixed on a supporting base rack and is limited by the sleeve barrel, a travel colliding rod on the moving rod is limited by an opening groove on the supporting base rack, and the supporting base rack is respectively fixed with an upper travel switch and a lower travel switch which are corresponding to contacts of the travel colliding rod and can cut and switch a power supply of a water pump at the time of the contacts of the travel colliding rod colliding and having contact with the upper travel switch and the lower travel switch on the upper end and the lower end of the opening groove. The utility model can control the upper travel switch and the lower travel switch for working by the buoyancy and gravity of the floating ball, and the utility model has the advantages of simple structure and reliable operation.