【Objective】 To explore the attachment characteristics and their interrelated factors include maternal sensitivity and children's temperament during 128 toddlers aged 1~2 years old. 【Methods】 The strange situation procedure(SSP) and maternal sensitivity scales were performed to assess the characters of toddler attachment and maternal sensitivities.And the families demographic data and toddler temperament scale were filled by their mothers. 【Results】 Among 128 infants,there were 99 secure-attachment,24 avoidant-attachment,and 5 resistant-attachment,no disorganized- attachment.And there were significant differences of maternal sensitivities between toddler's attachment types.There were a significant correlation between the approach-withdrawal,persistence,mood and distractive dimension of toddler temperament and some attachment behavior such as the proximity,maintain contact and avoidance. 【Conclusions】 There is a higher ratio of secure attachment during 128 toddlers from Jinan city than in other studies.Maternal sensitivities play an important role in child attachment development and the temperament doesn't impact the attachment types directly,but some temperament dimension have some effect on toddlers' behaviors at SSP.