The introduction experiment of eight 6-year-old varieties of Paeonia rockii introduced from Lanzhou to Yingkou region was studied aiming to enrich the varieties of flower.Phenological period and growth rhythm of P.rockii were studied.The results showed that the phonological period of P.rockill in Yingkou area was postponed for about 15 days than the origin area.Some growth indexes were obtained as the average annual increments of branch 22.6 cm.The average diameter of flower was 16.5 cm，flower production percentage 89.7%.P.rockii was a good cultivating flower species in Yingkou region for its good adaptability and higher ornamental value.