Objective: To evaluate the reliability and validity of the Chinese version of the Questionnaire of Executive Functioning (QEF) among elementary school students aged 7-12 years. Methods: A total of 841 elementary school students from four primary schools in the Pearl River Delta (Guangzhou), eastern Guangdong area (Jieyang), northern Guangdong area (Shaoguan), and western Guangdong area (Maoming) were selected for item analysis by using a stratified whole group sampling method in September 2022. A total of 377 elementary school students from the four elementary schools were selected for testing the structural validity and reliability, and 87 subjects from an elementary school in Guangzhou were selected at 15-day intervals for assessing test retest reliability test. Results: The questionnaire had good discrimination, and the correlation between the items and the total score ranged from 0.22 to 0.46 ( P <0.01). Exploratory factor analysis showed a cumulative variance contribution rate of 56.68%, with item loadings ranging from 0.41 to 0.74. Confirmatory factor analysis showed a good model fit ( χ 2/ df =3.048, CFI=0.988, TLI= 0.980 , RMSEA=0.058, SRMR =0.009). The overall Cronbach s α , split half reliability and test retest reliability of the questionnaire were 0.72 , 0.76, 0.79, respectively. Conclusion The Chinese version of the Questionnaire of Executive Functioning has good reliability and validity, and it is suitable for application to the self assessment of executive function among elementary school students.