Bone metastasis of breast cancer in the elderly indicates that it is in the advanced stage of breast cancer, which can pose a serious threat to life. However, the survival time is not the same as each elderly person’s condition, physical condition and convalescence program are different. 1. Condition: Bone metastasis of breast cancer can be categorized into localized bone metastasis and multiple bone metastasis, which have great influence on the survival time. The condition of multiple bone metastases often develops faster, which is more threatening to the life of the elderly. 2. Physical condition: if the elderly are in relatively poor physical condition before breast cancer bone metastasis, the cancer cells will spread more efficiently. The efficiency of cancer cells spreading will be faster, and some treatment methods cannot be used, which in turn will seriously affect the survival time. 3. Convalescent method: if the convalescent environment of each old man is different, and his condition and physical quality are different, the treatment plan will also be different, which will also directly affect the survival time. After breast cancer bone metastasis, the elderly should seek medical treatment as soon as possible in order to prolong the survival time.