The aim of this work was to study the uncertainty evaluation method of ring crush compression resistance of corrugated base paper in order to raise the level of corrugated base paper test. A group of corrugated Base paper were sampled, then the ring crush compression of some corrugated paper were tested. The main sources of uncertainty of ring crush compression were analyzed according to the standard JJF 1059—2012 "Evaluation and Expression of Uncertainty in measurement". The result showed that the expanded uncertainty of ring crush compression strength measurement of the corrugated base paper was 78.78， the confidence probability was 95%， and the confidence factor was 2. The evaluation results can be used to judge the ring crush compression strength of corrugated base paper, and also have great reference value for other corrugated base paper performance tests such as bursting strength and puncture strength.