Objective To study the cognition and demand of pharmacy services in hospitals from the views of doctors,pharmacists and patients and to provide references for improving the quality of pharmacy services.Methods 3 level 2 hospitals and 3 level 3 hospitals in Beijing were selected and questionnaires for doctors,pharmacists and patients were distributed and collected.Results and Conclusion Cognitively speaking,69.85% of doctors and 75.36% of pharmacists believe that pharmacy services are necessary,and 81.1% of patients believe it is helpful for pharmacists being involved in the process of treatment plans.Doctors and pharmacists themselves believe that the current pharmacist’s service ability is still insufficient,mainly due to the lack of clinical knowledge and the knowledge of medication combination.In terms of demand,doctors and patients have higher demand for pharmacy services,which is mainly involved in designing patient treatment plans,providing drug information and giving medication advice,and providing medication counseling.Doctors,pharmacists and patients all recognize and support the development of pharmacy services.However,in the understanding of the meaning of pharmacy services,doctors are better than pharmacists.Doctors and patients have greater demand for pharmacy services,but the supply of pharmacy services is still far from enough.It is recommended to strengthen the construction of related systems,incorporate pharmacy service work into hospital performance appraisal;attach importance to pharmacy professional talent training,improve pharmacy service ability,explore new hospital pharmacy service mode and to promote hospital pharmacy development.