Soil test and plant analysis is an efficient and direct tool to determine soil fertility and nutrient status of crop. In light of maintaining and improving the soil/plant testing quality, data interpretation, and data application in Asia-pacific region, “International Workshop on Soil and Plant Tissue Analysis: Testing Methods, QA/QC, Data Interpretation and Application”, organized by the Food & Fertilizer Technology Center (FFTC) and co-organized by the Taiwan Agricultural Research Institute (TARI), was held at Taiwan Agricultural Research Institute, Taichung, Taiwan, 12-13 September, 2018. In addition, a proficiency testing program (PT program) of soil and plant tissue analysis was conducted before this workshop. A total of 14 papers were presented and about 100 participants from the US and 7 Asian Pacific countries attended the workshop, and 21 soil testing laboratories participated in the PT program. Through the active participation and contribution of participants as well as experience exchanging and expertise sharing, this workshop has provided the best benefits and prospects of the communication on analysis technology, quality control and data interpretation for soil laboratories in the Asia-Pacific region.