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Due to the rapid updating of computer knowledge with many ambiguities,it is difficult for students to seek reasonable solutions for independent innovation.As an auxiliary innovation tool,intelligent question-answering system can help students to grasp the frontier of subject development,find out solutions for problems faster and precisely.In this paper,a knowledge graph of scientific research is constructed based on a large-scale database of scientific and technological documents,which realizes an intelligent question answering system for assisting students in innovation.In order toreduce the influence of noisy entities on query questions,this paper proposes an auxiliary task enhanced intent information for question answering in computer domain(ATEI-QA).Compared with the traditional method,this method can extract the question intention information more accurately and further reduce the influence of noisy entity on intention recognition.Additionally,we conduct a series of experimental studies on computer and common datasets,and compare with three mainstream methods.Finally,experimental results demonstrate that our model achieves significant improvements against with three baselines,improving <i>MAP </i>and <i>MRR </i>scores by average of 3.27%,1.72% in the computer dataset and 4.37%,2.81% in the common dataset respectively.