The utility model provides a wireless monitoring system for a drainage pipeline, which comprises a wireless honeycomb manager and a plurality of temperature acquisition front ends, and the plurality of temperature acquisition front ends are respectively communicated with the wireless honeycomb manager; the wireless cellular manager comprises a temperature management circuit, the temperature management circuit comprises a first microprocessor, and a reset interface is connected with a first reset switch; a first display screen; a first communicator; a first Internet of Things manager; the inputend of the first AC/DC power supply is respectively connected with an AC 220V power supply and a 3.3 V power supply, and the 3.3 V output end of the first AC/DC power supply is connected with the power supply input end of the first microprocessor; the temperature acquisition front end comprises a temperature acquisition circuit, the temperature acquisition circuit comprises a second microprocessor, the power input end is connected with the lithium-argon battery, and the reset interface is connected with a second reset switch; a second display screen; a second communicator; a thermocouple signal processor; electronic switch. The temperature sensor has the advantages of simple structure, low cost, battery power supply, temperature measurement range of 0-400 DEG C, no need of battery replacement in the life cycle, easy installation and convenient networking and data uploading.