In　this　paper,　a　wavelet　method　was　used　to　deal　with　the　density　deconvolution　problems　under　Fourier-oscillating　situation.　Wavelet　estimators　of　the　density　function　were　constructed　and　upper　bound　over　Besov　space　Brqs(L)　was　provided.　Result　shows　that　the　estimator　is　adaptive　and　extends　the　theorems　of　paper　[4,6].　©　2016,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.