Plant body temperature is one of the important physiological and ecological characteristics reflecting plant adaptability to habitat and indicating plant healthy condition. However, at present, plant body temperature is always explored as an affiliated issue from the aspect of energy budget instead of a synthetic and logic consideration, and practical application. In this paper, we make a brief review on plant body temperature from the following aspects: plant body temperature’s formation, change regularity, regulatory mechanism, practical application, and monitoring technology, for a better understanding of the achievements, progresses, and disadvantages in theories, technologies and applications of plant body temperature. In conclusion this study indicated that (1) the fundamental researches should be strengthened in order to reveal the structure, process, and feedback mechanism of plant selfmaintaining body temperature. (2) Monitoring technology should be developed to increase the equipment accuracy and operability, and to achieve the rapid and dynamic measurement of plant body temperature. (3) Application of technical achievements should be enhanced to establish an analysis evaluation and aid decision making system guiding production practice and forestry policy.