A magnetic suction type diaper monitor includes a power portion having a lower housing, a battery engaged in the lower housing and a power circuit board provided with multiple lower magnetic electrodes and two lower magnetic terminals, and a control portion having an upper housing and a control circuit board engaged in the upper housing, the control circuit board is provided with multiple upper magnetic electrodes corresponding to the lower magnetic electrodes and upper magnetic terminals corresponding to the lower magnetic terminals, a diaper sensor is disposed between the power portion and the control portion and is connected to the control portion via the magnetic electrodes, the control portion receives power supply via the magnetic terminals, the power portion and the control portion are individual components, which is easy to assemble.一種磁吸持式尿布監測器,包括:電源部,包含下殼體,及嵌置於下殼體內的電池和電源電路板;電源電路板設置多個下磁性電極及兩個下磁性端子;以及,控制部,包含上殼體及嵌置於上殼體內的控制電路板;控制電路板上設置與所述下磁性電極一一對應的上磁性電極,及與所述下磁性端子對應的上磁性端子。尿布感測器夾置在靠磁力吸合成一體的電源部和控制部之間,且尿布感測器透過所述磁性電極連接到控制部,控制部透過所述磁性端子獲得電源。其電源部、控制部為獨立部件,組裝和拆換方便,成本高的控制部可以重複使用,節省成本。1‧‧‧電源部2‧‧‧控制部3‧‧‧尿布感測器4‧‧‧系帶