Abstract: In order to find out suitable varieties of dragon fruit for Karst mountainous area，four new varieties were selected and introduced，including Taiwan Dahong，Guihonglong，Zimilong，and Chengxiang No.1. The growth performance of these varieties would provide the basic data for large-scale promotion of planting. The results showed that four varieties were all suitable to Karst rocky mountainous area. From the appearance of the fruit，the Chengxiang No.1 post-harvest product maintained the best，followed by Taiwan's Dahong and Guihonglong，and the Zimilong dragon was poor. The average single fruit weight is the largest on the Chengxiang No.1，followed by the Taiwan Red One，and the Guihong Dragon，with the smallest Zimilong. Taiwan Dahong had the highest soluble solid which reach to 19.6%，Guihonglong，Zimilong，and Chengxiang No.1 had close level about 18%. Compared to the normal red fresh dragon fruit，four varieties had good performance in storage，they had no fruit cracking with 10 days after fruit ripening. These characters were very favorable for staggering the marketing peak period. On the whole，Taiwan Dahong and Chengxiang No.1 could be the ideal varieties to replace the old varieties for their good performance in Karst rocky mountainous area.