Mouse liquid level sensor

A mouse liquid level sensor is characterized in that the structure thereof comprises a float bowl, a float bowl height sensing piece, and a mouse; the float bowl floats on the liquid level of a gauging well and fluctuates along with the height of the liquid level; the float bowl height sensing piece fluctuates in reverse direction along with the float bowl in real time; and the mouse takes the relative height information of the height sensor as the relative position detection information, and directly records the data volume of the relative position detection information into a computer in real time as a liquid level detection signal. The invention utilizes computer technology developing in high speed to combine a float type liquid level sensor and a computer directly, so as to improve the performance stability of the liquid level sensor, and realize network transmission and remote monitoring.