An IP processing technology is disclosed, and more particularly to a human infrared recipient processor, comprising: an amplifying circuit, a switch control circuit for output of switching signals, a PIR for obtaining analogue human IR signals, a PHOT for obtaining brightness signals, a main controller IC1 used for A/D conversion and digital filtering of analogue human IR signals and logical control/output of high-/low-level signals by the brightness and switching signals, as well as an external output circuit for controlling the working states depending on high-/low-level signals; wherein the human infrared recipient processor of the present invention features simple construction, higher SNR, stability, and sensitivity as well as stronger logical functions.