This research aims to know the analysis result on Work Ethics, Motivation and Organization Climate on The Performance of Asset & Office Management Department at PT Semen Baturaja (Persero) Tbk, both partially and simultaneously. This research is a quantitative research using associative, survey and descriptive method. In analyzing data, doubled linear analysis is used. The population is all 31 personnils of Asset & Office Management Department. The test value of work ethics, motivation and organization climate do not impact on the performance, with thitung -0.053 < ttabel(0,05,n-2) 2,04523, thitung motivation 1 < ttabel(0,05,n-2) 2,04523, and thitung organizaiton climate 1,839 and < ttabel(0,05,n-2) 2,04523. The test value F work ethics, motivation and organization climate impacts positive on performance with Fhitung 10,251 > F tabel(2, n-2) 2,93. Correlation Coefficient (R) 0,730 shows strong positive relation and determination coefficient (R2) 0,532 shows 53,2% from performance variable of Asset & Office Department can be described by work ethics, motivation and organization climate and 46,8% is impacted by other variables. Thus, if work ethics, motivation and organization climate increased partially, would not increase the performance of Asset & Office Management Department, but, if it is increased simultaneously, the performance of Asset & Office Management Department would increase.