To solve technical and economic evaluation in the design stage of energy-saving buildings, rank the rationality and economic performance of energy-saving technologies under limited condition and provide basis for the amendment and optimization of energy-saving building schemes, technical and economic evaluation model which is according to matrix evaluation method and analytic hierarchy process is put forward and is used in an project to verify its feasibility. This model chooses energy saving rate, renewable energy contribution rate, add capital ratio and payback period of investment as indexes to describe, explain and evaluate the energy-saving technologies. And this model which can truly realize energy saving in the initial design is well adapted.