In this thesis, we develop the high-concentration white-LED packaging with phosphor matrix. Based on the high-concentration phosphor optical model, we change different phosphor patterns, the height of sidewall of cup, and the angles of sidewall of cup to construct our encapsulation structure under the same correlated color temperature. By varying the different simulation parameters, we analyze how the packaging efficiency will be influenced. In the following process, we have verification between simulation and experiment in order to analyze their differences. In the end, we consider the literature of low-concentration packaging structure, and compare the performance between simulation and experiment in packaging efficiency.