YACLC is a large scale, multidimensional annotated Chinese learner corpus. To construct the corpus, the aurhots first obtain a large number of topic-rich texts generated by Chinese as Foreign Language (CFL) learners. The authors collected and annotated 32,124 sentences written by CFL learners from the lang-8 platform. Each sentence is annotated by 10 annotators. After post processing, a total of 469,000 revised sentences are obtained.