The purpose of this study was to examine and analyze the effect of the efficiency and effectiveness of the performance. Population of this research is all employees working group of 100 respondents. Tests carried out on a sample of 69 respondents. Digumakan sample method was census. Data collected by direct survey. Testing the hypothesis is tested empirically using Multi Rergression.
Partial results showed the efficiency of the Procurement Services Unit Papua province proved positive and significant effect on the performance of work group Procurement Services Unit Papua Province. This is shown on the significance value of 0.011 (probability <0.050) and t value of 2.617 while t table 1.658 so that t> t table (2.617> 1.658) which means that the first hypothesis is accepted. The study found that in parsialefektivitas Procurement Services Unit Papua province proved positive and significant effect on the performance of work group Procurement Services Unit Papua Province. This is evident from the significant value of 0.000 (probability <0.050) and t value amounted to 5,881 while 1,617 t so that t> t table (5,881> 1,617), which means that the second hypothesis is accepted.
The study results showed that simultaneously can be explained that the efficiency and effectiveness of Procurement Services Unit Papua province proved positive and significant impact on the performance of the working group (WG) Procurement Services Unit Papua Province. This is shown from the significant value of 0.000 (probability <0.05) with a value of 59.818 Fhitung 2,346 while F table so that F count (59.818> 2.346)

Keywords: Efficiency, Effectiveness and Performance Working Group.