Indoor unit address wrong change preventing method, VRF air conditioning system and readable storage medium

The invention discloses an indoor unit address wrong change preventing method applied to indoor units of a VRF air conditioning system; and the VRF air conditioning system comprises an outdoor unit and at least two indoor units. The indoor unit address wrong change preventing method comprises the steps of: receiving an address setting instruction, and obtaining a new address to be set according tothe address setting instruction; judging if the new address exists in a stored first address list, wherein the first address list is updated according to a received second address list sent by the outdoor unit, and updating self address as the new address when the new address dose not exist in the first address list. The invention provides the indoor unit address wrong change preventing method, the VRF air conditioning system and a readable storage medium. The method can effectively prevent wrong change of the address of the indoor unit, prevents the condition of address repetition of the indoor unit, prevents stop o