Objective : The purposes of this study are to evaluate the efficacy of Bee Venom therapy(BV) on HNP(Herniation of Nucleus Purposus) of Lumbar spine by use of Visual Analog Scale(VAS), Pain Rating Scale(PRS) and Digital Infrared Thermographic Imaging(DITI), and to investigate their correlation. Methods : We researched 20 patients who were diagnosed by MRI as having a HNP, and treated them by Oriental medical therapy(including BV) for 4 weeks. The evaluation was peformed twice(admission day and after treatment for 4 weeks), and we compared the results. Results : 1. VAS, PRS and ${Delta}t$(by DITI) were decreased after BV for 4 weeks significantly(p<0.01). 2. There was significant correlation between VAS and PRS(p<0.05). 3. There was significant correlation between PRS and ${Delta}t$(p<0.05). 4. There was no significant correlation between VAS and ${Delta}t$. Conclusions : BV improved HNP subjectively and objectively, and correlation was found between VAS and PRS and between PRS and ${Delta}t$. Further study is needed for investigating their correlation.