我國近年來大腸癌發生及死亡率躍升，且有年輕化的趨勢，然大腸癌篩檢率頗低。為能了解如何提升大腸癌篩檢率，本研究針對20-60歲民眾大腸癌篩檢行為及影響因子，與使用媒體、接收健康訊息來源進行調查。方法：以20-60歲民眾為對象，在高雄縣市百貨公司門口、車站、辦公大樓發送問卷進行調查，共發放451份問卷，分析383份有效問卷。問卷內容含基本資料、大腸癌及篩檢、接觸媒體及健康資訊的來源等。使用SPSS12.0中文版進行資料建檔與分析。結果：41位(10.7%)受訪者做過大腸癌篩檢。職業、曾接收大腸癌篩檢訊息及知道我國大腸癌發生與死亡率排名與大腸癌篩檢有統計相關。不同年齡、教育程度與職業接觸的媒體不同，希望獲得健康資訊管道也不同。僅39人(10.2%)受訪者不接受手機簡訊傳送大腸癌篩檢訊息。結論：民眾曾接收訊息及認知與大腸癌篩檢行為有關，且大腸癌篩檢率低落。不同年齡層接觸的媒體不同，而多數民眾不排除手機簡訊接收健康訊息。 The incidence and mortality rates of colon cancer have increased in recent years with increased incidence rates among younger population. But, the colon cancer screening rates are still low in Taiwan. In order to increase colorectal cancer screening, this research studies factors such as media exposure and reception of health information that influence the behaviors of aged 20 to 60 years-old individuals on colorectal cancer screening. Methods: Questionnaires were given to participants aged 20 to 60 years old. 451 participants were recruited from the department stores, train stations, office buildings in Kaohsiung City and County. Of the 451 participants, 383 subjects who have returned and completed the questionnaire were included in this study. The contents of questionnaire included demographic information, colorectal cancer screening, media channels, and sources of health information. Data were analyzed by SPSS 12.0 Chinese edited statistical software. Results: Of the 383 subjects, 41 (10.7%) subjects have been screened for colorectal cancer. Factors related to the participation of colorectal cancer screening are subject’s occupation, previous information on colon cancer screening, and knowledge on the incidence and mortality rates of colon cancer. To gather health information, subject’s age, educational level, and occupation determine the type of media he or she would have received. About one tenth (10.2%) subjects refused to receive text messages pertaining to colon cancer screening from the mobile phone. Conclusions: Previous knowledge on health information regarding to colon cancer is related to the outcome and behavior of colon cancer screening. With low colon cancer screening rates, it is important to reach people with different age groups from the media that they prefer. In this study, most of the subjects prefer to receive health information by text messages of mobile phone.