Objective: To investigate the clinicopathologic features and pattern of cervical lymph node metastasis in patients with papillary thyroid microcarcinoma (PTMC) and concomitant Hashimoto’s thyroiditis (HT). Methods: The clinical data of 284 PTMC patients treated during October 2008 to October 2012 were retrospectively analyzed. The patients were divided into observational group (n=58) and control group (n=226) according to whether or not they were complicated with HT. The relations of the concomitant PTMC and HT with the clinicopathologic factors, and the affecting factors for cervical lymph node metastasis of the PTMC patients were analyzed. Results: Among the 58 patients with PTMC and HT, 52 cases (89.7%) were female. Univariate analysis showed that sex, multiple lesions, lateral cervical lymph node metastases, and lateral neck along with central compartment lymph node metastases were significantly related to the concomitant PTMC and HT (all P<0.05). Multivariate analysis showed that concomitant PTMC and HT was an independent risk factor for lateral cervical lymph node metastases and lateral neck together with central compartment lymph node metastases (all P<0.05). Conclusion: Concomitant PTMC and HT is more common in female patients, and frequently presents with multiple lesions and lateral neck serial metastases.