A washer-integrated type wiper apparatus is provided. The washer-integrated type wiper apparatus includes a nozzle cover that is coupled to one side of a bending component of a retainer to support a wiper blade and a hose module that extends in the longitudinal direction in the interior of the retainer and is positioned in the interior of the nozzle cover and is connected to a washer liquid storing tank. Further, a main nozzle is connected in the interior of the nozzle cover to the hose module and is formed to expose a plurality of spray ports to the outside of the nozzle cover and is configured to spray the washer liquid supplied from the washer liquid storing tank through the spray ports. A heater module is installed in the heating area.