Sensor and diaper for diaper

The utility model provides a sensor and diaper for diaper, this sensor of includes detection electrode and hydrophilic first substrate, detection electrode includes: the setting at the first surface of first substrate, be the first metal strip of linearity, lie in first metal strip both sides and rather than second, the three metal strips of parallel, firstly set up firstly to three conductive connection part to three metal strip correspondences, the middle part of second or third metal strip sets up first through -hole, two sections are cut apart into with this metal strip to first through -hole. This diaper includes diaper main part and above -mentioned sensor, and this sensor is fixed in the diaper main part insidely or surperficial, and makes: first to third metal strip can from the person's of wearing hip pass and first through -hole is in between the person's of wearing the anus portion and private parts. Stool and urine can be distinguished in whether detecting the defecation to this sensor, can pass through the shaping of hobbing cutter cross cutting technology in addition, and manufacturing process is simple, and is with low costs.