Abstract: Autism spectrum disorder （ASD） is a chronic，lifelong neurodevelopmental disorder.Most cases occur in early childhood.With the rising prevalence，ASD has become one of the global public health issues.ASD has serious impacts on lives of children and their families，imposing great economic pressure and heavy spiritual burden on families.Therefore，early detection，and timely diagnosis，as well as early implementation of behavioral intervention and educational intervention，could impact the prognosis of ASD patients and help improve their families' social life.In November 2019，the Canadian Pediatric Socirty （CPS） issued Standards of Diagnostic Assessment for Autism Spectrum Disorder，which is the first ASD diagnosis statement issued by CPS to guiding the community primary healthcare providers.It provides community-based pediatric clinicians with recommendations，tools and resources to perform or assist in the diagnostic evaluation of ASD.This paper interprets this statement and optimizes ASD diagnosis and evaluation strategies，especially to help community pediatric clinicians and primary healthcare providers diagnose ASD as early as possible.

Key words: Autism spectrum disorder, Child, Diagnosis

摘要： 孤独症谱系障碍（ASD）是一种慢性的、持续终生的神经发育障碍，大多发病于儿童早期，随着其患病率的不断上升，已经成为全球公共卫生问题之一。ASD严重影响了儿童及其家庭的生活，给家庭带来巨大经济压力和沉重精神负担。因此，早期发现和及时诊断ASD，并尽早实施行为和教育干预，对改善ASD患儿的预后及家庭社会生活可带来积极影响。2019年11月加拿大儿科学会（CPS）发布了《孤独症谱系障碍诊断性评估标准》立场声明，是首部指导社区基层医务人员诊断ASD的声明，为社区儿科临床医务人员进行或协助ASD的诊断性评估提供了建议、工具和资源。本文就该声明进行解读，以期对我国ASD的诊治与评估提供指导，并且帮助社区儿科相关医务人员对ASD进行早期诊断及优化评估。

关键词: 孤独症谱系障碍, 儿童, 诊断