diff --git a/backend/pmr_api.py b/backend/pmr_api.py
index d9158ab..4ddbcad 100644
--- a/backend/pmr_api.py
+++ b/backend/pmr_api.py
@@ -151,24 +151,30 @@ def get_prescription_detail(prescription_id):
         conn = get_mssql_connection('PM_PRES')
         cursor = conn.cursor()
         
-        # 처방전 기본 정보
+        # 처방전 기본 정보 + 질병정보
         cursor.execute("""
             SELECT 
-                PreSerial,
-                Day_Serial,
-                PassDay,
-                Paname,
-                PaNum,
-                CusCode,
-                InsName,
-                Drname,
-                PresTime,
-                PreGubun,
-                PRICE_T,
-                PRICE_P,
-                PRICE_C
-            FROM PS_MAIN
-            WHERE PreSerial = ?
+                M.PreSerial,
+                M.Day_Serial,
+                M.PassDay,
+                M.Paname,
+                M.PaNum,
+                M.CusCode,
+                M.InsName,
+                M.Drname,
+                M.PresTime,
+                M.PreGubun,
+                M.PRICE_T,
+                M.PRICE_P,
+                M.PRICE_C,
+                M.St1,
+                M.St2,
+                S1.AU_NAME,
+                S2.AU_NAME
+            FROM PS_MAIN M
+            LEFT JOIN PM_BASE.dbo.CD_SANG S1 ON M.St1 = S1.AU_CODE
+            LEFT JOIN PM_BASE.dbo.CD_SANG S2 ON M.St2 = S2.AU_CODE
+            WHERE M.PreSerial = ?
         """, (prescription_id,))
         
         rx_row = cursor.fetchone()
@@ -232,6 +238,21 @@ def get_prescription_detail(prescription_id):
             except:
                 pass
         
+        # 질병 정보 (St1, St2 → AU_NAME)
+        disease_info = None
+        st1 = rx_row[13] or ''  # St1
+        st2 = rx_row[14] or ''  # St2
+        disease_name_1 = rx_row[15] or ''  # S1.AU_NAME
+        disease_name_2 = rx_row[16] or ''  # S2.AU_NAME
+        
+        if st1 or st2:
+            disease_info = {
+                'code_1': st1,
+                'code_2': st2,
+                'name_1': disease_name_1,
+                'name_2': disease_name_2
+            }
+        
         return jsonify({
             'success': True,
             'prescription': {
@@ -251,6 +272,7 @@ def get_prescription_detail(prescription_id):
                 'age': age,
                 'gender': gender
             },
+            'disease_info': disease_info,
             'medications': medications,
             'medication_count': len(medications)
         })
diff --git a/backend/templates/pmr.html b/backend/templates/pmr.html
index fea09f6..17af0d1 100644
--- a/backend/templates/pmr.html
+++ b/backend/templates/pmr.html
@@ -574,11 +574,24 @@
                     document.getElementById('detailInfo').textContent = 
                         `${data.patient.age || '-'}세 / ${data.patient.gender || '-'} / ${data.patient.birthdate || '-'}`;
                     
+                    // 질병 정보 표시
+                    let diseaseHtml = '';
+                    if (data.disease_info) {
+                        const d = data.disease_info;
+                        const diseases = [];
+                        if (d.name_1) diseases.push(d.name_1);
+                        if (d.name_2) diseases.push(d.name_2);
+                        if (diseases.length > 0) {
+                            diseaseHtml = `<span style="background:#fef3c7;color:#92400e;">🩺 ${diseases.join(', ')}</span>`;
+                        }
+                    }
+                    
                     document.getElementById('rxInfo').innerHTML = `
                         <span>🏥 ${data.prescription.hospital || '-'}</span>
                         <span>👨‍⚕️ ${data.prescription.doctor || '-'}</span>
                         <span>📅 ${data.prescription.date}</span>
                         <span>💊 ${data.medication_count}종</span>
+                        ${diseaseHtml}
                     `;
                     
                     // 약품 테이블