In　this　paper,　we　consider　the　partially　nonlinear　errors-in-variables　models　when　the　nonparametric　component　is　measured　with　additive　error.　The　profile　nonlinear　least　squares　estimator　of　unknown　parameter　and　the　estimator　of　nonparametric　component　are　constructed,　and　their　asymptotic　properties　are　derived　under　general　assumptions.　Finite　sample　performances　of　the　proposed　statistical　inference　procedures　are　illustrated　by　Monte　Carlo　simulation　studies.