The present disclosure provides diaper prediction and correction system and method. This system includes a diaper sensor, a server and a mobile device. The server is configured to store crowdsourcing data including a plurality of sensing criteria corresponding to a plurality of geographic regions, different genders, a plurality of ages, a plurality of diaper data. The mobile device is configured to execute a mobile application to pair with the diaper sensor and to transmit a location information, a wearers sex and age, and a brand or a model of a diaper to the server, so that the server selects a corresponding sensing criterion from the sensing criteria and returns the corresponding sensing criterion to the mobile device, and the mobile device is based on the corresponding sensing criterion to determine whether a diaper sensing signal from the diaper sensor reflect that the diaper needs to be replaced.
