Today, medication gradually increased the proportion of the world, and people pay more attention to the problem of medication safety. Moreover, medication error is the most common type of negligence. In addition, medication error extends another medication worries that is the interactions between food and medicine, such as interactions between Chinese and Western medicine. Hence, we propose a system reminding of taking medicine and interaction between food and medicine, and it is developed on the android platform. We use voice mode and pull down menus to enter these information of medicine bag. Next, the system plan out medication schedules, and realize the medicine effects and side effect from medicine bag. User can use the information to understand whether an interaction between the food and drug or drugdrug is produced or not. Finally, the important character we needed will be extracted and recognized with our proposed method. All of information about medicines will be stored in the medicines database within smartphone, and then it will trigger the function of taking medicine reminding and the function of interaction food and medicines. Finally, we also use the medicine ontology to make users know the relationship between food and medicines. We use questionnaire survey for testing the efficiency of system. The results can be divided into two categories questionnaire. The first is the general user and the other is some medical personal. It shows that users have 83% satisfaction. Actually the rate of people who have smart phones, and willing to install this system in smart phones reached 89%.People are busy to forget to take the medicine or eat some food with interactions, and it lead to reduce the efficacy of medicines. From the experimental results, in terms of medication, our system for people who take long-term medicine is very helpful. Our system not only has a basic reminder but also have interactions inquiry among Chinese medicine, Western medicine and food. In addition, our system allows users to feel comfortable to take medicine, and avoid interactions between medicine and medicine. Our system will automatically plan out the right medication schedule, and achieve the effect of reminding. In diet and medicine analysis, our database is built up based on the lunar calendar of food-drug interactions and Chinese Medicine Interaction of Chi Mei Medical Center. The query of good and medicine interactions have high accuracy, and low error rate. Using our system can enhance and improve the effect of taking medicine, and avoid diet and medicine user-generated conflict situation. We hope that our system can alleviate the suffering of other patients and toil of the disease.