English Abstract In the BGA set-up technology, the solder balls need highly positional precision, especially in the height. If not, the solder ball’s top will be in-coplanar. The bad contact between the solder ball and a circuit board will bring about a leakage contact and a virtual contact, and these will affect the reliability of the IC chip. For this reason, it is very important to check the co-planarity and the height of the solder ball. The Leaser measuring system is the most familiar measuring equipment. It is very expensive and cost high maintenance fee. The thesis is to inquire into the best design for measuring parameters on 3D vision measuring system based on Taguchi Method and apply the results to measure the height of the solder ball. After experimenting on two measuring system, we found that the latter is more efficient and the precision is improved around 1.7 times than the former.