The　aim　of　this　study　was　to　investigate　the　differences　in　gait　kinematics　and　kinetics　among　pre-frail,　frail,　and　non-frail　older　adults　during　routine　walking　tasks.　A　total　of　106　older　adult　participants　were　classified　into　frail,　pre-frail,　and　non-frail　groups　based　on　the　Fried　frailty　scale.　Kinematic　and　kinetic　data　were　acquired　via　a　three-dimensional　gait　analysis　system.　Multivariate　analysis　of　covariance　(MANCOVA)　was　employed　to　assess　the　differences　in　gait　kinematics　and　kinetics　among　the　groups,　followed　by　Bonferroni　post-hoc　tests.　MANCOVA　revealed　significant　differences　in　peak　ankle　plantar　flexion,　ankle　range　of　motion　(ROM),　knee　heel　strike　angle,　and　hip　toe-off　angle　among　the　groups　on　the　right　side　(P　＜　0.002).　On　the　left　side,　significant　differences　were　found　in　peak　ankle　plantar　flexion,　ankle　ROM,　and　hip　toe-off　angle　(P　＜　0.002).　However,　no　significant　differences　in　gait　kinetics　were　observed　among　the　three　groups　(P　＞　0.002).　There　is　a　weak　correlation　between　gait　kinematic　parameters　and　dynamic　postural　stability.　Compared　with　non-frail　individuals,　frail　older　adults　reduced　peak　ankle　plantar　flexion,　ankle　ROM,　and　knee　heel　strike　angle　during　walking.　In　contrast,　the　hip　toe-off　angle　was　found　to　be　increased　in　the　frail　group.