Context. Atomic data is crucial for astrophysical investigations. To understand the formation and evolution of stars, we need to analysetheir observed spectra. Analysing a spectrum of a star requires information about the properties of atomic lines, such as wavelengthsand oscillator strengths. However, atomic data of some elements are scarce, particularly in the infrared region, and this paper is partof an effort to improve the situation on near-IR atomic data.Aims. This paper investigates the spectrum of neutral scandium, Sc i, from laboratory measurements and improves the atomic dataof Sc i lines in the infrared region covering lines in R, I, J, and K bands. Especially, we focus on measuring oscillator strengths forSc i lines connecting the levels with 4p and 4s configurations.Methods. We combined experimental branching fractions with radiative lifetimes from the literature to derive oscillator strengths(f -values). Intensity-calibrated spectra with high spectral resolution were recorded with Fourier transform spectrometer from a hollowcathode discharge lamp. The spectra were used to derive accurate oscillator strengths and wavelengths for Sc i lines, with emphasison the infrared region.Results. This project provides the first set of experimental Sc i lines in the near-infrared region for accurate spectral analysis ofastronomical objects. We derived 63 log(g f ) values for the lines between 5300 Å and 24 300 Å. The uncertainties in the f -values varyfrom 5% to 20%. The small uncertainties in our values allow for an increased accuracy in astrophysical abundance determinations
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