The　cube　corner　reflectors　(CCR)　have　the　depolarization　effect,　which　will　affect　the　efficiency　of　the　adjust-free　solid　state　laser,　and　can　also　be　applied　to　the　beam　combination.　Both　of　them　require　accurate　polarization　characteristics.　The　Mueller　matrices　of　6　transmission　light　paths　of　the　cube　corner　were　deduced　by　using　analytic　geometry　and　ray　tracing.　To　improve　the　experiment,　a　scheme　of　dynamic　detection　of　Stokes　parameter　was　designed　to　get　high　precision　data.　The　error　rate　is　4.470%　and　is　within　a　reasonable　range.　This　study　have　meaning　for　eliminating　the　depolarization　effect　of　cube　corner,　improving　the　performance　of　laser　and　improving　the　efficiency　of　beam　combination.　©　2018,　Editorial　Board　of　Journal　of　Infrared　and　Laser　Engineering.　All　right　reserved.