The subject of this research is mainly targeted users? satisfaction on Wireless Network Services in Taichung city. In many IT industries, wireless techniques becomes a generally topic day by day. Questionnaire methodology is used on this research, whereby this thesis is written according to descriptive statistics, ANOVA and Pearson correlation analysis. There are some reasons that users of wireless network are frustrated when there are problems on wireless coverage or when there is in need of wireless access to the internet but unable to be accomplished. All of those are the main problems that users are really concerned, especially they have paid to the ISP and they haven't got satisfied services yet. There are many ways that ISP could improve, such as stabilizing the wireless infrastructure, increasing wireless coverage area and providing manual or customer service for users to setup. According to the research which is on coverage area, there are users that use the wireless service from their offices and homes. Due to market oriented, many people are heading towards to IT industry nowaday. Therefore, wireless service is required almost everywhere, even at their homes. It is the best idea which is wireless service coverage could be covered all over the city. According to the statistics, there are significant changes from their original anticipation for wireless network for users having been better educated; because there are security issue happenings after they have transacted over to the wireless network, such as credit card details intercepting, E-mail having been duplicated and hacker stealing the data. This issue can cause a large threat to wireless service provider. This thesis manifests that if ISP can provide better security and wireless infrastructure stability, it will bring the internet firms toward to wireless field broadbandly. When there are satisfied wireless services everywhere in the city, it doesn?t care about cables threat anymore.