Itisaveryimportantandcomplicatedissuetochooseandconfirmtechnologyschemes,whichisalsoacomplicatedsystemengineeringthathascharacteristicssuchasmulti-factor,multi-levelandmulti-goaletc.Soweneedtooptimizeandappraiseitwiththemethodofmulti-goalandmulti-principle.Basedondiscussingtherelationbetweentechnologyandeconomy,thispaperputsforwardthefactorswhichshouldbeconsideredtoappraisetechnologyschemessynthetically,thoughtsandmethodsofvariantvalue-weighted,andbringsforwardanewsyntheticalappraisalmodelwhichcanappraisetechnologyschemesobjectivelyandcomprehensively.
