The invention relates to an air conditioner indoor unit, which comprises a case, a heat exchange device and at least one ion wind assembly. The case is provided with an air inlet and at least one air outlet; the heat exchange device is arranged in the case; each ion wind assembly comprises a power supply seat connected with a power supply and arranged in the case, and an ion wind generating device detachably arranged on each power supply seat; and when being arranged on each power supply seat, each ion wind generating device is powered by each power supply seat and pushes air to flow toward the air outlets through an electric field force. The air conditioner indoor unit provided by the invention is less in air supply noise, and each ion wind generating device can be conveniently powered, disassembled and assembled.