Leak water alarming's lavatory pan

The utility model provides a leak water alarming's lavatory pan, include the water tank, install respectively floater water intaking valve and drain valve and delivery port intercommunication in the water tank the overflow pipe of drain valve delivery port, it still includes treater and the alarm, contact type senser, the level sensor that are connected with this treater respectively, wherein, level sensor installs in the water tank, just level sensor with high installation such as the overflow mouth of overflow pipe so that the pressurized soaks during the water tank overflow, install respectively with lower contact contact type senser's the contact of going up the floater backstop lower extreme of floater water intaking valve with the floater of floater water intaking valve upper end is so that during full water contact intercommunication, this leak water alarming's lavatory pan has design science, simple structure, the automatic judgement condition of leaking, effectively avoids the advantage of the waste