This　study　attempted　to　estimate　the　environmental　performance　of　poly　(propylene　carbonate,　PPC)　in　the　whole　life　cycle.　The　life　cycle　is　from　raw　materials,　energy　acquisition,　manufacture,　transportation,　to　the　final　disposal,　sequentially.　The　environment　impacts　of　these　phases　are　assessed　by　the　method　of　Life　Cycle　Assessment　(LCA)　to　identify　key　aspects　of　environmental　loads　involving　global　warming,　non-renewable　resource　consumption,　and　acidification　effects　and　so　on.　Moreover,　a　comparative　study　due　to　manufacturing　of　PPC　in　its　whole　life　cycle　was　taken　to　reveal　which　stage　would　make　the　most　environmental　load.