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The research titled "Application of an Innovative Floating Buoy for Turbidity Measurement in Water Quality Assessment of the Phraya Kham Canal, Mueang District, Chiang Mai Province" aimed to study water quality based on GLOBE Hydrosphere criteria, develop an innovative turbidity-monitoring buoy using a KidBright board and turbidity sensor, compare the turbidity values obtained from two different measurement methods, and evaluate the effectiveness of a tilt sensor in detecting potential flood risks. This study utilized both experimental and survey-based research methods. Data collection was performed four times (once per week) by testing the floating buoy on-site at the Phraya Kham Canal. The results indicated that water quality, when measured according to GLOBE criteria, maintained a constant turbidity of 27 cm, representing a moderate level of clarity. Other parameters included a water temperature of 21–23°C, pH levels of 7.5–7.8, electrical conductivity of 223–231 µS/cm, and Dissolved Oxygen (DO) levels of 4.5–5.5 mg/L. Phosphate and nitrite levels remained stable throughout the study. These findings suggest that the water quality is at a moderate to good level and remained consistent during the assessment period. Regarding the floating buoy, the turbidity sensor recorded values in the range of 1000–1234, mirroring the trends observed in the GLOBE results—specifically, a slight increase in turbidity during the second week and a decrease in the fourth week. Furthermore, the tilt sensor successfully monitored the buoy's orientation within a normal range (5–10°), with no abnormal tilting detected, demonstrating the stability of the buoy and its capacity for continuous water condition monitoring. In conclusion, the developed innovative floating buoy can effectively measure turbidity and monitor water conditions, providing results consistent with the GLOBE Hydrosphere standard measurements. This innovation supports community water resource monitoring, advances students' learning in science and technology, and serves as a foundation for developing similar applications in other areas.