A system for authenticating a handwritten signature based on dynamic movement tracking of spatial-division segment, the system comprising: a handwritten signature input unit that includes a touch input unit configured to output touch data, as handwritten signature input data, including position data and pressure data for positions that are touched by a signer for handwritten signature; an enrollment unit configured to enroll overall handwritten signature block characteristics information (Σ) of each signer; and a handwritten signature authentication unit configured to store the handwritten signature input data including the touch data received from the handwritten signature input unit, generate a handwritten signature image by identifying the handwritten signature by use of the handwritten signature input data, generate a spatial overall handwritten signature block (S, S313) defined by a top, a bottom, a leftmost and a rightmost points of the overall handwritten signature and including the handwritten signature, generate segment blocks by spatially dividing generated overall handwritten signature block by a predetermined number of divisions, detect a segment image for each of the generated segment blocks, collect the handwritten signature characteristics information (Σ) including the overall handwritten signature block information, each segment block information, correlation information between the overall handwritten signature block and each segment block, map the collected handwritten signature characteristics information to identification information of the signer, enroll the collected handwritten signature characteristics information in the enrollment unit (100, S121), collect handwritten signature characteristics information (Σ) including the overall handwritten signature block information, each segment block information, correlation information between the overall handwritten signature block and each segment block from the touch data entered through the touch input unit of the handwritten signature input unit upon receiving a request for handwritten signature authentication, load the enrolled handwritten signature characteristics information (Σ') that corresponds with the identification information of the signer who requests the handwritten signature authentication, and perform the handwritten signature authentication based on segments of the handwritten signature according to a match rate by comparing the enrolled handwritten signature characteristics information (Σ', S131) with the collected handwritten signature characteristics information (Σ). a handwritten signature input unit that includes a touch input unit configured to output touch data, as handwritten signature input data, including position data and pressure data for positions that are touched by a signer for handwritten signature; an enrollment unit configured to enroll overall handwritten signature block characteristics information (Σ) of each signer; and a handwritten signature authentication unit configured to store the handwritten signature input data including the touch data received from the handwritten signature input unit, generate a handwritten signature image by identifying the handwritten signature by use of the handwritten signature input data, generate a spatial overall handwritten signature block (S, S313) defined by a top, a bottom, a leftmost and a rightmost points of the overall handwritten signature and including the handwritten signature, generate segment blocks by spatially dividing generated overall handwritten signature block by a predetermined number of divisions, detect a segment image for each of the generated segment blocks, collect the handwritten signature characteristics information (Σ) including the overall handwritten signature block information, each segment block information, correlation information between the overall handwritten signature block and each segment block, map the collected handwritten signature characteristics information to identification information of the signer, enroll the collected handwritten signature characteristics information in the enrollment unit (100, S121), collect handwritten signature characteristics information (Σ) including the overall handwritten signature block information, each segment block information, correlation information between the overall handwritten signature block and each segment block from the touch data entered through the touch input unit of the handwritten signature input unit upon receiving a request for handwritten signature authentication, load the enrolled handwritten signature characteristics information (Σ') that corresponds with the identification information of the signer who requests the handwritten signature authentication, and perform the handwritten signature authentication based on segments of the handwritten signature according to a match rate by comparing the enrolled handwritten signature characteristics information (Σ', S131) with the collected handwritten signature characteristics information (Σ).