Abstract: The existing studies hold different views on the benefits of mental health arising from urban green space, and one of the reasons is that there are differences in the evaluation methods of green space. At present, the dimension of evaluating the greening level is relatively simple, and less attention is paid to urban special living environment and the types of social space. This research analyzes the impacts of the built-up environmental green space on self-rated health and mental health in lilong, or the lanes and alleys, based on the 2016 comprehensive survey data of Shanghai's old and new lanes and alleys. It adopts the satellite remote sensing and street view recognition technologies to quantify the greening level of the living environment from different dimensions, such as green space accessibility, green area, community vegetation coverage level, community green visibility level, and residents’ satisfaction of community greening. It has found that the vegetation coverage of the residential greening and the scales of the parks are significantly related to the self-rated health, and the scales of the parks are significantly related to the mental health. No significant effect of the distance to the parks and the view green index on health is found. It is also noted that the perceived greenness level has a significant positive effect on residents' health.