¡§Research and Development¡¨ possess three major characteristics: (1) Lots of uncertainty will be encountered during the process of R&D; (2) Required for a certain of expenses and manpower; (3) Long pay back time; Therefore, the decision-making of R&D could be very complicated with far-reaching influence. Nevertheless, once the decision maker made an incorrect decision, it may cause lots of consequences that can't be remedied. For this reason, the key subject of this paper is to construct a decision-making model to help the decision maker to make RD decisions. While making the decisions of RD projects, its decision making environment is often: (1) subjective (2) quantized (3) group participated , or (4) uncertain, Therefore, this paper use T.L.SAATY¡¦s AHP-ANALYTIC HIERARCHY PROCESS to build a decision-making model for the equipment R&D project. The DM model use L- Company¡¦s ¡§R&D Planning Project¡¨ as an example. Analysis of characteristic and construction of Hierarchies Structure will be carried out to determine evaluating items of each hierachy and the relation of each hierachy. Moreover, the analysis will be correctly in accordance with AHP¡¦s evaluation scaling to make the Pair wise Comparison and get the maximum eigenvalue and eigenvector, to achieve the priority for decision making of L- Company¡¦s ¡§Equipment R&D Project¡¨, In the end, an AHP evaluation model was build to reinforce the quality and efficiency of decision making for Equipment RD and it¡¦s another field of AHP application.