Abstract: OBJECTIVE To explore the mode of pharmaceutical services to pregnant patients by clinical pharmacists. METHODS The clinical pharmacists supplied services to a pregnant patient with bronchial asthma and chronic obstructive pulmonary disease(COPD) by the pharmacy estimate, medicine intervention and medicine conduction. The clinical pharmacists summarized the experiences of the pharmaceutical services to the pregnant patients. RESULTS Through cooperating with doctors, nurses and clinical pharmacists, the patient situation improved and left hospital. CONCLUSION Clinical pharmacists is necessary in the treatment for the pregnant patients and special patients.