The invention discloses an intelligent water level temperature recorder. The intelligent water level temperature recorder includes a MCU, and a water level sensor, a temperature sensor, a memory, a clock circuit, a power supply management module and an RS485 communication interface which are connected to the MCU; and a power supply battery is connected between the clock circuit and the power supply management module. The advantages of the invention are that the intelligent water level temperature recorder can avoid manual operation, can reliably work for long time, can timely measure and record data, and can ensure the validity of the data; compared with the precision of the conventional measurement tools, the measurement precision of the intelligent water level temperature recorder is superior to 0.1% of measuring range; all the functions are integrated in a metallic housing having the diameter of 24 mm, and the manufacturing and use cost is greatly reduced; the mass memory is arranged in the recorder, and can store data over 5 years, and the continuity of hydrology parameter data can be ensured; and the intelligent water level temperature recorder is easy to use, and can be directly put in water for long time.