The annual mean temperature for the last 90 years is warming at the rate of 0.05℃/10 years in Qingdao city,whereas the annual mean minimum temperature is warming at 0.13℃/10 years.The annual mean temperature for the last 40 years is warming faster than past period,especially the annual mean minimum temperauture is much obvious.By comparison with coastal stations,the variation trend of annual mean temperature is consistent with coastal islands (e.g. Chaolian island),whereas annual mean minimum temperature is warming faster than Chaolian island.It shows that the influence of Qingdao city development for the last 40 years on the climatic warming appears obviously in the minimum temperature increasing.