The invention relates to a cleaning type solar water heater with a pressurizing function. The cleaning type solar water heater comprises a water tank, a water pipe, at least two heat collecting pipes,a pressurizing mechanism and a cleaning mechanism, wherein the pressurizing mechanism comprises a driving assembly and at least two pressure control assemblies, the pressure control assemblies comprise sliding rods, piston blocks, sealing sleeves, connecting wires and springs, the cleaning mechanism comprises a filter screen, a cleaning assembly, a slag discharge pipe, a cone bucket and a collecting cylinder, and the driving assembly comprises a motor, a first gear, a second gear, a driving shaft and two installation bearings, and the cleaning assembly comprises a supporting rod, a supportingbearing, a paddle blade, a connecting shaft and a cleaning brush. In the cleaning type solar water heater with the pressurizing function, the water pressure of water drained from the solar water heater can be increased through the pressurizing mechanism, the practicability of the solar water heater is improved, scale in the solar water heater can be cleaned through the cleaning mechanism, and thewater quality of the solar water heater is improved.