Parents' knowledge is an integral part of healthcare quality, impacting treatment adherence, patient loyalty and healthcare utilisation in pediatric asthma. Parental knowledge is particularly crucial as parents influence decision-making for their child's healthcare. To assess parents' knowledge and perceptions of their children's asthma and to identify areas for weakness in therapeutic education. This is transversal survey study based on validated and translated self-administered questionnaire (Arabic asthma knowledge questionnaire AAKQ). The study was conducted in 2 departments: pediatric primary care department at Elomrane and pediatric pneumology outpatient clinics at Bechir Hamza children's hospital of Tunis during 6 months (March2022- October2022). One hundred forty-four parents were involved in the study. Most of the participants were mothers. The mean age was 38 years. Only 27,0% had higher education and smoking in parents was observed in 58% of cases. Our results showed moderate knowledge in 67,9% of participants. The mean of the total knowledge score was 57,7/85. Forty-six per cent of parents had poor knowledge for the first category of the questionnaire. The second category was the most successful part where only 14% had poor knowledge. The mean score of the third category was 13,5/20 with 35,4% of parents having poor knowledge. The mean of total knowledge was found to be higher among participants with higher education (P=0,000), when the gender of the child is masculine (P=0,038), when the parents were asked in Hospital of children of Tunis (P=0,003) and when there is a history of asthma in the siblings (P=0,05). No difference in caregiver's knowledge was based on their age or gender or history of asthma, on the age of the child, his hospitalization for asthma, his asthma control level or his compliance with medication. Knowledge of parents and their children suffering from asthma is acceptable but insufficient. An approach focusing on improving patient education skills is needed to help families understand and accept the disease and achieve optimal control.