The utility model discloses a window type air -conditioner, include: air conditioner body and closing plate subassembly. The closing plate subassembly establish at least one side of air conditioner body and including fixed seal board group and with the fixed seal board sealing connection's of group sliding seal board group, fixed seal board group establishes on the side of air conditioner body, on being close to or keeping away from the direction of air conditioner body, sliding seal board group establishes on slidable ground in one side of keeping away from the air conditioner body that the fixed seal board was organized. According to the utility model discloses a window type air -conditioner through utilizing for the fixed seal board slidable sliding seal of group board group, can adjust the position that the sliding seal board was organized according to window type air -conditioner's installation environment to be convenient for make the closing plate subassembly to be applicable to the window form frame of different models, and then enlarged the application scope of closing plate subassembly. In addition, through making fixed seal board group and the sliding seal board sealing connection of group, can also be spaced apart with indoor environment and outdoor environment effectively, reduce the heat exchange efficiency between indoor environment and the indoor environment.