The purpose of this study was to evaluate recording completeness of the nursing process. We compared nursing statements documented at the time when the Electronic Nursing Record (ENR) system, based on the ICNP, was implemented in 2004 with those documented in 2007. The ENRs for 35 gastrectomy patients in each year were selected for evaluation. The selected data were 11,822 nursing statements in 2004 and 27,870 in 2007. The results indicated a significant increase in the completeness of the nursing process in 2007. In addition, the number of nursing diagnosis increased by 5.1 times. The most contributing factor for this increase is assumed to be nurse education.