This paper summarized XU Jingfan's experience in treating digestive diseases based on spleen-

yin

theory. It is believed that the spleen is

yin

earth， whose nature is moist and calm， and the spleen

yin

and spleen

qi

are mutual cause and effect. In treatment of digestive diseases， XU Jingfan took the spleen-

yin

theory as the guide， adhered to the pathogenesis， combined disease and syndrome， used the “sweet” method， and integrated the form and function. It is proposed that ulcerative colitis should be treated with sweet-bland and sweet-neutral medicinals， and

Shenrou Yangzhen Decoction

（慎柔养真汤） is usually used. For the treatment of chronic atrophic gastritis， it is suggested to use sweet-bland and cool-moistening medicinals， as the sweet intends to enter the spleen， and the bland moistens

yin

， such as Biandou （

Semen Lablab Album

）， Shanyao （

Rhizoma Dioscoreae

）， Lianzi （

Semen Nelumbinis

）， Shihu （

Caulis Dendrobii

） and Baishao （

Radix Paeoniae Alba

）； to cool and moisten the form and enrich the function of the stomach， medicinals such as Maidong （

Radix Ophiopogonis

）， Zhimu （

Rhizoma Anemarrhenae

）， Shashen （

Radix Adenophorae seu Glehniae

） and Lugen （

Rhizoma Phragmitis

）， Zhuru （

Caulis Bambusae in Taenia

）， as well as

Shenling Baizhu Powder

（参苓白术散） can be used. For functional constipation， it is advised to use sweet， cool and moistening medicinals， usually with Huomaren （

Fructus Cannabis

）， Taoren （

Semen Persicae

）， Yuliren （

Semen Pruni

）， Xingren （

Semen Armeniacae Amarum

）， Danggui （

Radix Angelicae Sinensis

） and Baishao （

Radix Paeoniae Alba

）. In the treatment of liver cirrhosis ascites， sweet-cold and bland-percolating medicinals should be taken， and usually

Yi Guan Decoction

（一贯煎） and

Shenmai Dihuang Decoction

（参麦地黄汤） are used. At the same time， it is suggested not to supplement in a sudden， and not to be rushed to success.