This paper summarized the clinical experience of professor WANG Qingguo in the treatment of constraint diseases with

Chaihu Guizhi Decoction

（柴胡桂枝汤）. It is believed that the onset of constraint diseases starts from

qi

constraint； if the

qi

constraint lasts for a long time， it may injure the pivot， and finally leads to the stasis and stagnation of

ying

-

wei

（营卫）. When treating the constraint diseases， it is suggested to harmonize and unblock the pivot， regulate

qi

and invigorate blood， putting focus on “harmonization” of pivots， of

qi

-blood and of

ying

-

wei.

In clinical practice，

Chaihu Guizhi Decoction

（柴胡桂枝汤） can be used to harmonize the pivots， and regulate

qi

， blood，

yin

and yang， as well as to harmonize

ying

-

wei

， regulate and unblock

san jiao

（三焦）， spleen and stomach； simultaneously， it is advised to provide humanistic care to the patients.