量子纠缠逐渐作为一种最为基本也最为重要的物理资源，在量子计算和量子信息方面展示出了巨大的实际应用前景，是现代量子计算机的基础.在纠缠态的获取上，一些诸如电磁场、温度等的外部因素，都会对纠缠态造成不同程度的影响.本文就是利用并协度和负性纠缠度两种不同的纠缠度量对自旋1/2的两量子比特海森伯模型的热纠缠进行计算，得出其热纠缠与温度的关系.

 Quantum entanglement, as one of the most basic and important physical resources, has shown great practical application prospect in quantum computation and quantum information, and is the foundation of modern quantum computer. In the acquisition of entangled state, some external factors, such as electromagnetic field, temperature and so on, will affect the entanglement state in different degrees. In this paper, the thermal entanglement of the spin-Heisenberg model is calculated by using two different entanglement measures: Concurrence and Negativity.