Abstract: Based on the data of the eco-meteorological monitoring station from November 2021 to October 2022,the comprehensive evaluation index method was used to conduct the meteorological evaluation of the ecological quality in the green barrier in Jinnan Bali Bay of Tianjin. The results suggest that the humidity index,vegetation coverage index and soil moisture index in July 2022 were at the highest level in the study period,and the meteorological disaster index was at a lower level,so the meteorological comprehensive evaluation index value was the highest in this period,reaching 0.74;The comprehensive evaluation index value in August took the second place,reaching 0.72;The index value reached the lowest in December 2021,only 0.21. The annual average of the comprehensive evaluation index was 0.47. It is consistent with the actual situation of the green barrier at the initial construction stage. This study has important reference significance for the subsequent objective assessment of the ecological quality of the green barrier.

Key words: ecological quality, meteorological evaluation, green barrier in Jinnan Bali Bay