Abstract: The study focused on pod development of dryland peanut by different treatments of fertilizer application.The results showed that pod weight and pod volume increasing could be characterized as a “slow-rapid-slow”rhythm.It’s cumulative dynamics was simulated by a Logistic eguation.The growth rate of pod weight had a peak of 0.3791~0.5947g/plant·d at 43~48day after emergence,and the peak(0.8487~1.6684cm3/plant·d)of growth rate of pod volume occurred at 36~39day after emergence, the rapid growth period was 20~30days.Date of peak growth rate of pod weight and pod volume had a changing process from earlier to later with an increase of the amount of fertilizer application.