A diaper monitoring device using bluetooth is provided. The diaper monitoring device includes a carrier, a moisture detecting module, a temperature detecting module, a battery and a wireless transmitter. The moisture detecting module is mounted to the carrier and for detecting to generate a moisture signal. The temperature detecting module is mounted to the carrier and for detecting to generate a temperature signal. The battery is mounted to the carrier and electrically connected to the moisture and temperature detecting modules. The wireless transmitter is mounted to the carrier and electrically connected to the moisture and temperature detecting modules, for transmitting the moisture and temperature signals outside for a cell phone to receive them.本創作之藍芽嬰兒尿布監測器包括一載體、一濕度感測模組、一溫度感測模組、一電池及一無線發射器。該濕度感測模組設於該載體,用以感測一濕度感測訊號。該溫度感測模組設於該載體,用以感測一溫度感測訊號。該電池設於該載體且電性連接該濕度感測模組及該溫度感測模組。該無線發射器設於該載體且電性連接該濕度感測模組及該溫度感測模組,用以將該濕度感測訊號及該溫度感測訊號向外界傳輸供一手機接收。10‧‧‧載體20‧‧‧濕度感測模組30‧‧‧溫度感測模組40‧‧‧電池50‧‧‧無線發射器70‧‧‧覆袋71‧‧‧黏著材