In thisstudy，the spatial variability of available phosphorus(AP)and available potassium(AK)in croplandtopsoil across the different regions and soil types in Jilin province was evaluated，using traditional statistic method combined with GIS technique based on the data of topsoil AP and AK in the soil testing and recommended fertilization program during 2005～2013.Moreover，the historic changing trends of AP and AK in cropland topsoil were also discussed comparedwith the data obtained during the second national soilsurvey.Results showed that the AP content in cropland topsoil ranged between 1.6 and 84.2 mg·kg-1 with a mean of 25.4 mg·kg-1，and the AK content ranged between 24 and 299 mg·kg -1 with a mean of 123.6 mg·kg-1in Jilinprovince.The variation levels were moderate both for AP andAK.The spatial distributionof AP in cropland topsoil of Jilin province was characterized by being high in the east and low in thewest，the highest value was observed in Jingyu county of Baishan district and the lowest value was observed in Da’an county of Baichengdistrict.AKshowed a spatial distribution of being high in the north and low in thesouth，and the highest and lowest values were observed in Nong’an of Changchun and Ji’an ofTonghua，respectively.During the 30 years since second soilsurvey，AP content incropland topsoil showed an obviously ascending trend both in provincial and regionalscale，however，a slight decreased AKcontent was observed in the provincial scale with differed changing trends in the differentregions.Considering the differentsoiltypes，increased AP contents in cropland topsoil were observed in the most soil types except for black soil and dark brownsoil；the AK contents increased in aeolian sandy soil andchernozem，while decreased in dark brown soil and meadowsoil.In conclusion，there were enormous differences in spatial distribution and historic change in AP and AK of cropland topsoilof Jilinprovince.In the long -term agriculturalproduction，the overuse of P fertilizer and the lower use efficiency resulted insoil P accumulation in Jilin province，and increased K requirement of high -yielding crop and farmers’neglect of K fertilizerapplication led to excess consumption and deficiency of soilK.Therefore，regional crop nutrient management strategy and technology should be further improved based on the temporal and spatial characteristics of topsoil nutrient status betweenregions and soil types.We suggest reducing P fertilizer rate or altering P fertilizer source to decrease P accumulation insoil，increasing K fertilizer in the soil K deficiency region and returning straw intofield，in order to realize simultaneously high crop yield and high nutrient use efficiency by optimizing nutrient resource input.