By　using　propensity　score　matching　method　of　random　sample,　we　matched　simple　random　sample　units　and　volunteer　panel　Web　survey　sample　units　based　on　the　equal　or　similar　propensity　score.　The　unbiased　estimators　of　the　population　parameters　are　constructed　by　using　the　matching　simple　random　sample,　and　the　self-selection　bias　is　estimated.　We　propose　propensity　score　weighted　and　matching　sample　post　stratification　weighted　methods　to　estimate　the　population　parameters,　and　the　self-selection　bias　in　volunteer　panel　Web　Surveys　are　adjusted.