Abstract: Aiming at the problem that it is difficult for construction machinery enterprises to choose intellectual property products, we propose a group decision making method for construction machinery intellectual property product recommendation based on consistency and consensus. We consider the consistency and consensus level simultaneously during the recommendation decision-making process and combined to judge whether the consistency/consensus level of experts reach a certain level. Using the feedback mechanism to change the preferences of experts when the consistency/consensus level is not high. When the consistency/consensus level reaches a certain level, we use the quantifier guided dominance degree (QGDD) and quantifier guided non-dominance degree (QGNDD) to select the suitable intellectual property product. Finally, we use an example to verify the validity and practicability of the method.