This study intended to find the gaps between the current pharmaceutical practices and the practice standards and to make improvements. In 2015, Taiwan Society of Health-System Pharmacists formulated “Taiwan Good Pharmacy Practice (GPP)” according to “FIP/WHO Good Pharmacy Practice in Community and Hospital Pharmacy Setting 2011”, defined the 4 roles of pharmacists. A questionnaire was developed according to Taiwan GPP 2015, and was used to survey the pattern of pharmaceutical practices at different levels of health-care institutions and community pharmacies. The gaps between the pattern of the pharmaceutical services in Taiwan and the Taiwan GPP were analyzed. Opinions of the experts in focus group discussion were adopted. The proposal for improvement was as follows. In role 1: Pharmacists should establish a mechanism to handle the drug shortage, and let patients understand the cause and action plan. There should be continuous training programs to enhance pharmacists’ knowledge and abilities in pharmaceutical compounding. In role 2: Pharmacists should provide appropriate medication education to meet the needs of the general public. Pharmacists’ human resources and ability in pharmaceutical care should be strengthened. In role 3: The pharmacists should keep up to the current knowledge and technology, such as utilizing automation to improve the accuracy and efficiency of pharmaceutical services. In role 4: Pharmacists should develop a model to effectively communicate with the general public to share the healthcare information in a friendly way and participate more in the public health issues.