This study was to evaluate the dynamic of soil respirations following forest fertilization in a red pine stand in Korea. Different combinations of fertilizer (N:P:K=113:150:37 kg/ha; P:K=150:37 kg/ha) were applied in April 2011 and soil respiration rates were monitored from April to November 2011. Heterotrophic soil respiration was measured from inside 50 cm diameter of PVC collar inserted into 30 cm soil depth to prevent root growth. Soil respiration rates were lower in fertilization (NPK: 0.67; PK: 0.65 g CO₂ / m² / h) than in control (1.00 g CO₂ / m² / h) treatments, while heterotrophic respiration rates were slightly higher in fertilization (0.48-0.53 g CO₂ / m² / h) than in control (0.43 g CO₂ / m² / h) treatments during the study periods. Forest fertilization influenced soil respiration and the effect of more pronounced in the case of autotrophic respiration.