The invention discloses a liquid level and temperature integrated sensor which is arranged at the top of a container. The liquid level and temperature integrated sensor comprises a base, a liquid level sensor which is arranged in the base and is used for monitoring the height of a liquid level, and a temperature sensor which is arranged at the lower end of the liquid level sensor and is used for monitoring temperature of liquid on the top layer, wherein the liquid level sensor comprises a floating rod, disconnected voltage sharing circuits which are arranged at different height positions in the floating rod and comprise sensing elements, and magnets arranged outside the floating rod in a sleeving manner; the temperature sensor moves up and down along with the change of the height of the liquid level, and the temperature sensor is located in the liquid on the top layer all the time. The integrated sensor can move up and down along with the change of the height of the liquid level, and the temperature sensor is located in the liquid on the top layer all the time, so that the aims of monitoring the height of the liquid level and monitoring the temperature of the liquid on the top layer in real time at the same time can be fulfilled.