The forest wetland ecological function area and adjacent areas in northern China with Heilongjiang Province as the main body are selected as empirical research areas. The green development level measurement index system is constructed from three dimensions of green production, green life, and green ecology. Using Entropy TOPSIS evaluation method, obstacle degree model, trend moving average model and other methods, the green development level of the forest ecological function area of Changbai Mountain, the wetland ecological functional area of Sanjiang Plain, the forest ecological function area of Daxing'an Mountains and Xiaoxing'an Mountains and adjacent non-ecological function control areas were dynamically measured and compared with time and space differences. The green transformation speed was evaluated, and the role of obstacle factors were identified and analyzed. We also predicted the level of green development trends from 2009 to 2018. The main conclusions are as follows:①the regional natural background is high-quality, but the green development level of each functional area is relatively low, and the green index is lower than 0.6; the green development level of each functional area has a slight upward trend during the decade. The biggest gap in the overall level of green development between cities hovers between 0.16 and 0.17, showing a slight shrinking trend. ②From the perspective of the overall green development spatial pattern of each functional area at the three time nodes, the forest ecological function area of Changbai Mountain is at a relatively high level, while the wetland ecological functional area of Sanjiang Plain is at a low level. The level of green development in the forest ecological function area of Daxing'an Mountains and Xiaoxing'an Mountains has increased significantly, while that in adjacent non-ecological function control areas is smaller. The number of high-level cities has increased from 1 to 3, and the number of low-level areas has decreased from 4 to 2, and the trend is shifting to a higher level. ③The overall effect of regional green transformation is not significant, and the slow speed of transformation does not show a significant trend of the accelerated transformation development. ④Compared with green ecology, the two indicators of green life and green production hinder the level of urban green development. ⑤The level of regional green development will fluctuate and rise in the next 5 years. Enhancing the innovation-driven mechanism and improving the ability of green innovation, improving infrastructure construction and promoting regional coordinated development, increasing investment in human resources and improving the governance of ecological environment are important measures to promote regional green development in an all- round way.