ObjectiveTo systematically review the indoor influencing factors of asthma in Chinese children. MethodsThe CNKI, WanFang Data, VIP, PubMed, Cochrane Library, and ScienceDirect databases were electronically searched to collect cross-sectional studies on the indoor influencing factors of asthma in Chinese children from inception to November 2021. Two reviewers independently screened the literature, extracted data, and assessed the risk of bias of the included studies; then, meta-analysis was performed using Stata 16.0 software. ResultsA total of 29 cross-sectional studies were included, and 11 influencing factors were analyzed by meta-analysis. The results of the meta-analysis showed that redecoration (OR=1.57, 95%CI 1.37 to 1.79, P<0.01), environmental tobacco smoke (OR=1.59, 95%CI 1.34 to 1.88, P<0.01), cooking oil fume (OR=1.98, 95%CI 1.20 to 3.25, P<0.01), mold and water damage (OR=1.49, 95%CI 1.09 to 2.02, P<0.01), mold (OR=2.01, 95%CI 1.40 to 2.90, P<0.01), water damage (OR=1.72, 95%CI 1.44 to 2.06, P<0.01), moldy odor (OR=1.38, 95%CI 1.22 to 1.56, P<0.01), indoor humidity (OR=1.50, 95%CI 1.18 to 1.91, P<0.01), furry pets (OR=1.55, 95%CI 1.39 to 1.72, P<0.01) and cockroach (OR=1.63, 95%CI 1.24 to 2.14, P<0.01) were risk factors for asthma in Chinese children, while burning incense had no association with the occurrence of asthma in children. ConclusionCurrent evidence indicates that redecoration, environmental tobacco smoke, cooking oil fume, mold and water damage, mold, water damage, moldy odor, indoor humidity, furry pets, and cockroaches are influencing factors of asthma in Chinese children. Due to the limited quality and quantity of the included studies, more high-quality studies are needed to verify the above conclusion.