The purpose of this study is to demonstrate the positive effects of linear greenspace on the reduction of carbon dioxide (CO₂) which can help improve ecological functions in cities and mitigation of climate change, through quantifying CO₂ uptake and evaportranspiration of some plants. Experiment for CO₂ uptake and evaportranspiration of 7 plants was conducted by measurement of CO₂ exchange rate for 7 month, growing season from May to November 2009. The result was as follows; The CO₂ uptake quantity per ㎠ of Trachelospermum asiaticum was the highest rate at 7.049 × 10?? g/㎠ and Hydrangea serrata of the shrubs was 5.369 × 10?? g/㎠. The stronger was light of intensity, the higher were CO₂uptake rate of most plants. In quantity of evaportranspiration, Hydrangea serrata was the highest rate at 3.414 × 10?? g/㎠ and Euonymus fortunei was 3.650 × 10??g/㎠. From this study, it is confirmed that Shrubs and vines composed urban linear greenspace has capacity of absorption CO₂ and effects on improving urban microclimate.