The invention discloses an intelligent lamp post. The lamp post comprises a lamp post body. A terminal processor, a network communication module, an audio encoding and decoding module and a voice recognition module are arranged in the lamp post body. A street lamp module, a monitoring camera, an alarm lamp and an environment monitoring device are arranged at the top of the lamp post body. A broadcast loudspeaker, an information publishing screen, an interphone and a one-key help button are arranged at the middle section of the lamp post body. The terminal processor is respectively connected with the network communication module, the audio encoding and decoding module, the voice recognition module, the street lamp module, the monitoring camera, the alarm lamp, the environment monitoring device, the information release screen and the one-key help button, and the audio encoding and decoding module is respectively connected with the interphone and the broadcast loudspeaker. The invention further discloses a working method applying the intelligent lamp post. According to the invention, intelligent lighting, intelligent monitoring, public broadcasting, one-key help-seeking alarm and voice recognition help-seeking alarm are integrated, and intelligence and humanization of safety alarm can be better realized.