The regular ice observation was carried out during March to December 2012 every 2~7 days near Chinese Zhongshan Station in Prydz Bay. Snow and ice thickness, freeboard, ice type and characters were recorded at two sea ice observation positions (SIP), with one was first-year ice (SIP-FYI) and another was multi-year ice (SIP-MYI). The summary of gap layer records observed at two sea ice observation position SIP-MYI and SIP-FYI near Zhongshan Station in 2012 was presented here. NA means no available data. MYI and FYI represents multi-year ice and first-year ice, respectively.