Abstract: A wireless intercommunicative alarm doorbell comprising an outdoor bell and an indoor bell; the outdoor bell comprises an outdoor bell casing, an outdoor bell power supply, an outdoor bell loudspeaker, an outdoor bell microphone, an outdoor bell talk button, an outdoor bell antenna, an outdoor bell wireless transmitting and receiving integrated circuit, a door ring button and a door ring integrated circuit; the indoor bell comprises an indoor bell casing, an indoor bell power supply, an indoor bell loudspeaker, an indoor bell microphone, an indoor bell talk button, an indoor bell antenna, an indoor bell wireless transmitting and receiving integrated circuit and a door ring integrated circuit; the indoor bell further comprises an alarm button. The present invention provides an alarm which is easy for the person indoor to operate and can effectively call for attention on the basis of a wireless intercommunicative doorbell.