Conclusion:The contents Ca,P,Mg and ALP were increased especially in malignant and big tumor or stimulation of operation and it has an important regulation role between the activity of osteoblast and osteoclast in jaw tumors.

• 颌骨肿瘤手术前后钙磷差异无显著性 (P >0 .；0 5 )；镁和ALP高于手术前 (P <0