This paper summarized professor WANG Xinlu's experience in clinical application of hongjingtian （

Radix et Rhizoma Rhodiolae Crenulatae

）. It is believed that hongjingtian is good at boosting

qi

and supplementing deficiency， moving

qi

and resolving constraint， invigorating blood and unblocking vessels， which can be widely used in various diseases caused by

qi

-blood disorders such as

qi

deficiency，

qi

constraint， and blood stasis. Hongjingtian is commonly used with jixueteng （

Caulis Spatholobi

） to boost

qi

and nourish blood， invigorate blood and unblock vessels， and together with yuzhizi （

Fructus Akebiae

） to regulate

qi

and invigorate blood， dissolve stasis and dissipate masses. According to the specific symptoms， hongjingtian can be flexibly combined with other medicinal herbs to prepare different experienced formulas， such as self-made

Sanhong Yangxin Decoction

（三红养心汤） for palpitation with

qi

deficiency and blood stasis syndrome， self-made

Anfei Dingchuan Decoction

（安肺定喘汤） for exacerbation of asthma with deficiency syndrome， self-made

Honghu Jieyu Decoction

（红胡解郁汤） for constraint syndrome of

qi

constraint and blood stasis， and self-made

Shexue Chudian Decoction

（摄血除癜汤） for idiopathic thrombocytopenic purpura with

qi

deficiency failing to contain syndrome. For severe cases of coronavirus disease 2019 （COVID-19） with

qi

-

yin

desertion syndrome， hongjingtian is commonly used together with modified

Shengmai Powder and Tingli Dazao Xiefei Decoction

（生脉散合葶苈大枣泻肺汤）， and for those with yang

qi

external desertion syndrome， hongjingtian combined with shanyurou （

Fructus Corni

） and

Shenfu Decoction

（参附汤） is recommended. Moreover， long COVID-19 with healthy

qi

deficiency and pathogen lingering syndrome can be treated with self-made

Xinguan Fuyu Decoction

（新冠复愈汤）.