OBJECTIVE:To investigate the effects of WeChat platform online service on the safety of pediatric family medica-tion and the quality of pharmaceutical care. METHODS:The online consultation records of"Qs and As for pediatric medications"were collected and summarized from the WeChat platform(WeChat ID:etyywd)during Jun.1st,2014-Dec.31st,2015 in our hos-pital. Statistical analysis was performed on the consulting time periods,age of pediatric patients with consultation demands,and the systems and mistake types involved in medication consultations. RESULTS:A total of 29 850 dialogue records on WeChat were collected,and 13 315 of these were related to medications(44.61%). The peak time of medication consultation was at 9:00-10:00 in the morning,with an accumulative consultation number of 1 840 cases(13.82%);while the least consultation time pe-riod was at 4:00-5:00 early in the morning,with only 13 cases(0.10%).Pediatric patients in need of consultation were more with-in the age of 1-6 years old,and most of them were preschool children(31.20%)and toddlers(26.32%). The systems consulted mainly involved the respiratory system,immune system and digestive system;in which respiratory system had the most cases (60.28%). There were 1 508 Qs and As records for medication mistakes that were occured or may occure and were corrected in time(11.33%),in which the mistake types were mainly the unsuitable use of antipyretics(3.91%),antibiotics abuse(3.14%), careless use of combination medication and excessive medication(3.04%),excessively large or small doses(0.69%),improper use of nebulized inhalant after discharge(0.41%),and excessive use of vitamins(0.14%). CONCLUSIONS:The WeChat plat-form expands the service scope of clinical pharmacists.As an extension of hospital pharmaceutical care,it reduces the risk of fami-ly medication mistakes due to a patient's or members'wrong recognition to a certain degree,reinforces communication between doctors and patients,and improves the experience of medical services.