Sea ice position data collected by GPS buoys deployed in the 5th, 6th 7th and 8th CHINARE Arctic cruis. Data of sea ice drift collected by the buoys deployed in the 5th CHINARE Arctic cruise from 2012 to 2013, the data include:longitude, latitude, sea ice temperature profile.Long time series, high frequency sea ice temperature data obtained by Sea ice mass balance buoy(SIMBA) in the 6th CHINARE Arctic cruis from 2014/8/20 to 2015/12/2.SIMBA observed data of the 7th CHINARE Arctic cruise in 2016 and the 8th CHINARE Arctic cruise in 2018.