  We report the results of fitting Insight-HXMT data to the black hole X-ray
binary MAXI J1348-430, which was discovered on January 26th, 2019, with the Gas
Slit Camera (GSC) on-board MAXI. Several observations at the beginning of the
first burst were selected, with a total of 10 spectra. From the residuals of
fits using disk plus power law models, X-ray reflection signatures were clearly
visible in some of these observations. We use the state-of the-art relxill
series reflection model to fit six spectra with distinct reflection signatures
and a joint fit to these spectra. In particular, we focus on the results for
the black hole spin values. Assuming Rin = RISCO, the spin parameter is
constrained to be 0.82+0.04-0.03 with 90% confidence level (statistical only).
