The　actual　stress　in　soil　nails　is　very　different　from　theoretical　analysis,　so　in-situ　measurements　in　Chaowai　SOHO　project　in　Beijing,　the　method　that　placing　the　reinforcing　steel　bar-stress　measuring　apparatus　in　primary　reinforcing　steel　bar　to　gain　actual　pull　force　is　adopted　in　this　paper.　When　the　soil-nailing　is　under　operation,　contrast　between　the　actual　pull　force　and　the　value　calculated　by　current　regulations　is　made.　The　result　of　the　study　shows　that　the　stress　in　soil　nails　along　the　length　direction　display　parabola　distribution,　and　the　actual　pull　force　in　soil　nails　about　half　of　the　value　is　gained　by　theoretical　calculation.