Self-adapting measuring device and method for water temperature of reservoir

An adaptive measuring device for the water temperature of a reservoir, comprising: a probe (15), a fixed pulley (14), a lifting control device (12), a control system (1) and a data transmission line (13), wherein one end of the data transmission line (13), after twining the lifting control device (12), is connected to the control system (1), and the other end thereof is connected to the probe (15) through the fixed pulley (14) fixed above the reservoir. A microprocessor (2) in the control system (1) performs calculation according to input parameters, a selected measurement mode and data transferred back, and issues an instruction to make the lifting control device (12) act, thereby enabling the length of the data transmission line (13) entering the reservoir to change so as control the lifting of the probe (15) for measuring. Also provided is an adaptive measuring method for the water temperature of a reservoir. The provided adaptive measuring device and measuring method for the water temperature of a reservoir can realize efficient, rapid and accurate measurement of the water temperature of the reservoir, and capture the change of a thermocline well.