The invention discloses an intelligent communication power unit, comprising a first power supply segment, a first bus segment, a second power supply segment and a second bus segment. The structure of the first power supply segment is the same with the structure of the second power supply segment; the connection mode between the first power supply segment and the first bus segment is the same with the connection mode between the second power supply segment and the second bus segment. In the first power supply segment, a first AC input, an AC contactor, a switch and a rectifier are successively in connection; two output terminals of the rectifier are respectively in connection with corresponding positive and negative poles of a DC source E1; the DC source E1 is in connection with the first bus segment through a switch DK1; a diode D1 is in series connection between the negative pole of the DC source E1 and the rectifier, and the negative pole of the diode D1 is in connection with the positive pole of the DC source E1; a diode D2 is in series connection between the DC source E1 and the negative wire L- in the first bus segment, and the negative pole of the diode D2 is in connection with the negative pole of the DC source E1; the first bus segment is in connection with the second bus segment through a switch DK3. The intelligent communication power unit has the characteristics of low cost, flexible operation, and safe, stable and reliable performance.