The　tests　arrangements　are　systematically　introduced　firstly,　including　test　facilities,　similar　ratios,　modelling　materials,　model　cases　and　so　on.　Then,　the　test　results　including　accelerations　of　surrounding　rock　and　tunnel　structure,　laws　of　strains　and　deformations　of　structures,　failure　features　of　upward　slope.　The　analysis　results　show　that:　an　amplified　effect　of　acceleration　and　displacements　of　tunnel　structures　exist　at　the　area　which　is　of　some　distance　from　the　entrance　of　the　tunnel.　There　is　not　much　differences　in　the　law　of　the　amplification　effect　for　different　gradients　of　upward　slope.　The　amplification　effect　decreases　as　the　gradient　of　upward　slope　increases.　The　analysis　of　the　strain　show　that　the　tunnel　structure　is　mainly　subjected　to　transverse　stress.　A　cycling　load　of　tension　and　pressure　acts　on　the　cross-section　of　the　tunnel　which　result　in　additional　seismic　bending　moment　on　arch　waist　and　arch　feet,　which　could　be　seen　as　weak　parts　in　seismic　design　of　lining　structure.　The　mechanical　characteristics　of　lining　has　no　relation　with　the　gradient　of　upward　slope.　The　additional　moment　is　proportional　to　soil　thickness　and　the　inertia　force　of　lining.　As　the　gradient　of　upward　slope　increases,　the　soil-structure　interaction　effect　is　gradually　weakened;　and　the　failure　modes　of　the　slope　are　different,　which　include　local　slope　collapse,　large　slump　at　the　top　of　the　lining,　highstand　sliding.　Both　of　them　are　all　the　surface　failure.　But　the　tunnel　openings　are　usually　partially　or　completely　buried,　which　severely　affect　the　normal　use　of　tunnel.　Tests　results　provide　references　for　seismic　design　of　tunnel　portal　section　in　mountain　tunnels.