Based　on　strong　motion　and　seismic　velocity　records　from　small-to-moderate　earthquakes　in　the　capital　circle　region　of　China,　we　developed　a　new　ground　motion　prediction　model　(GMPM)　that　incorporates　magnitude,　geometric　attenuation,　anelastic　attenuation,　and　linear/nonlinear　site　response　terms.　The　GMPM　was　subjected　to　evaluation　through　residual　analysis.　We　compared　the　median　predictions　of　the　GMPM　with　those　of　two　commonly　used　local　GMPMs,　as　well　as　the　observed　ground　motions　in　this　region.　Furthermore,　we　conducted　an　investigation　into　the　differences　between　the　GMPM　and　four　NGA-West2　models.　Additionally,　we　explored　certain　model　parameters　that　could　potentially　explain　these　differences.　The　results　indicate　that　the　GMPM　effectively　captures　the　magnitude-dependent　attenuation　and　nonlinear　average　effect　of　soil　sites.　The　GMPM　demonstrates　the　capability　to　predict　horizontal　peak　ground　acceleration　(PGA),　peak　ground　velocity　(PGV),　and　spectral　acceleration　(SA　(T　=　0.01-3.0　s)).　The　model　is　applicable　for　surface　wave　magnitudes　(MS　=　3.1-5.1),　hypocentral　distances　(Rhyp　=　10-200　km),　and　VS30　=　103-1070　m/s　in　the　capital　circle　region　of　China.　There　are　significant　differences　in　anelastic　attenuation　at　rock　sites　between　southern　California　and　the　capital　circle　region　of　China.　These　differences　decrease　with　increasing　periods　and　largely　diminish　in　far　sources　and　soil　sites.　This　is　primarily　because　the　effect　of　anelastic　attenuation　is　neutralized　by　the　greater　site　amplification　of　ground　motion　in　southern　California,　especially　over　medium　and　long　periods.　The　difference　in　ground　motion　observed　in　small-to-moderate　earthquakes　across　different　regions　is　predominantly　influ-enced　by　long-distance　attenuation　and　dissimilarities　in　site　responses.