結合網際網路功能的行動上網服務是目前最受矚目的新興通訊技術，台灣地區手機持有密度高達97%，手機上網的比率卻僅佔其中的三成，相較亞太各國比率明顯偏低，顯示國內消費者對此項創新的使用是呈現接受與拒絕並存的情形。本研究目的在結合正負向的創新採用及創新抵制兩者觀點，探究產品特性、消費者特質及傳播管道三者與知覺障礙的關聯性，及知覺障礙與創新採用行為的影響性。本研究以問卷調查法進行實證，利用文獻探討及焦點訪談設計量表，並以台灣地區的電信業者鎖定的20到29歲為主力族群為研究對象，有效問卷有568份。進一步利用迴歸分析及單因子變異數分析分別探究知覺障礙與影響因素之間的關聯性，及其與採用行為的影響性。研究結果發現手機上網特性對知覺障礙產生影響性不一，手機使用者本身的特質會對手機上網的知覺障礙有負向影響作用，另外，訊息的吸引力，及傳播管道的公信力及說服力對之知覺障礙皆具有負向影響性。知覺障礙產生也會正向影響抵制行為且降低持續採用行為。

Mobile Internet is the modern technology which combines Internet and telecommunication. The rate of cellular phone in Taiwan is about 97%, but only 30% of them have adopted Mobile Internet. This percentage is lower than other Asia countries. It seems to appear that the Mobile Internet for consumer in Taiwan was not easily to be accepted. The purpose of this paper is to combine Innovation Adoption and Resistance to explore consumers' percuived barriers. In addition, the factors of perceived barriers are investigated. Furthermore, the effects which produced by perceived barriers on innovation adpotion behaviots are discussed in this study. The questionnaire is made through the result of literature review and focus group discussion. 20-29 years old people are groups. There are 568 effective questionnaires. Then, regression analysis amd one-way ANOVA are used to analysis data and verify the hypotheses. The empirical results indicate that relative advantage, compatibility, complexity, perceived risk, observability, trialability, reversibility, and amenability to modification of the Mobile Internet are significantly related to perceived barriers. Besides, consumer innovativeness, self-efficacy, attitudes, and needs for Mobile Internet are significantly positive related perceived barriers. The persuasiveness and believable of propagation mechanisms are significantly positive related to perceived barriers, and then perceived barriers influence negatively innovation adoption behaviors.