Ultraviolet (UV) photodissociation dynamics of jet-cooled propargyl (C₃H₃) radical is studied in the photolysis wavelength region of 230 to 250 nm using high-n Rydberg atom time-of-flight (HRTOF) technique.  In this wavelength region, the photofragment yield spectra of the H + C₃H₂ product channel are obtained with propargyl chloride, allene, and propyne as the precursors of the C₃H₃ radicals, and they show a broad peak near 240 nm and are in good agreement with the absorption spectrum of C₃H₃.  The H + C₃H₂ product translational energy distribution is obtained; the distribution peaks at ~ 5 kcal/mole and the average translational energy release is ~0.35 of the total available energy.  The H-atom product angular distribution is isotropic, with the anisotropy parameter = 0.  The dissociation mechanism will be discussed.