Abstract: This article mainly introduced methods such as physical chemistry or non-destructive testing to determine the ripeness of apples to ensure that they are harvested at the optimal harvest period. Pre-treatment technologies before the storage, such as pre-cooling treatment, calcium treatment, ozone treatment, and 1-MCP were analyzed along with their effects on apple storage and fresh-keeping. Various storage technologies of apples, such as mechanical refrigeration, controlled atmosphere storage, etc., were summarized. In addition, insights to the development of domestic apple storage and fresh-keeping industry were foreseen in this article.