As　the　optoelectronic　aiming　and　orientation　of　an　optoelectronic　tracker　effect　directly　the　overall　measurement　accuracy　and　operational　performance　of　instruments,　this　paper　proposes　an　improved　design　scheme.　Firstly,　the　optoelectronic　aiming　and　orientation　control　technology　of　the　laser　tracker　was　analyzed,　and　a　systemic　technological　scheme　for　optoelectronic　detection　and　aiming,　signal　regulate　acquisition,　digital　signal　processing　and　intelligent　tracking　servo　was　proposed.　The　key　components　in　the　system　were　selected,　and　the　detection　optical　path　and　signal　processing　circuit　were　designed　by　using　a　cube-corner　prism　and　a　Position　Sensing　Detector　(PSD)　as　the　photoelectric　detecting　core.　Then,　a　system　prototype　was　developed　and　a　standard　test　platform　for　target　displacement　was　established　to　test　the　detecting　signals　of　photoelectronic　aiming　system　in　the　prototype.　The　tested　results　demonstrate　that　the　proposed　system　performance　index　has　achieved,　in　which　the　static　precision　of　the　position　measurement　is　up　to　6　μm,　and　the　stochastic　dynamic　tracking　measurement　speed　is　greater　than　1　m/s.　It　shows　that　the　proposed　method　improves　orientation　accuracy　and　tracking　effect　of　the　laser　tracker　and　provides　reference　for　development　of　measurement　instruments　with　high　accuracy　and　large-scale　fields.　©,　2015,　Chinese　Academy　of　Sciences.　All　right　reserved.