The K0s is the neutral strange particle due to the presence of strange quark content. These strange particles are generally produced in strong interaction and decay through weak interaction. Using the DPMJET hadron production model, p+p interactions was simulated using +85GeV/c beam energy through the Time Projection Chamber. This K0s particles were reconstructed using the V0-Finder algorithm and the efficiency of this algorithm was 40%. All the correction/Efficiencies were determined using the DPMJET model. In the present work, K0s production cross-section in bins of pt2 using Proton-Proton interactions at 85 GeV/c energy using DPMJET model was studied. This analysis and results will be used for data analysis at MIPP experiment at Fermilab.