A baby bottle water temperature display and warning device. One end of a bottle body is a closed end and the other end is an open end to form a receiving slot. An outer spiral is provided at the open end, and a temperature sensing unit is provided at The inside of the bottle body senses the temperature of a liquid in the tank to generate a temperature sensing signal, and a micro processing unit receives the temperature sensing signal, and generates a control signal based on the temperature sensing signal. A display unit then displays the temperature of the liquid being sensed, and an alerting unit warns when the temperature of the liquid exceeds a set temperature value, thereby reaching the temperature of the water in the feeding bottle and displaying the water temperature, and The purpose of warning is when the water temperature exceeds 40 ° C.