Cr2+:ZnSe having a wide range of absorption and emission spectra, is an excellent tuning laser material in mid-IR wavelength range. In this paper, lasing abilities of Cr2+:ZnSe had been studied by analyzing the absorption spectrum, emission spectrum and tuning ability. The Cr2+:ZnSe poly-crystal laser material is prepared by physical vapour transport (PVT) technique. The sample is cut and polished in thickness of 1.7 mm and with diameter of 10 mm. Pumped by a 2.05 μm Tm-ion doped silica fiber laser, delivering maximum output power of 8 W, maximum average output power of 1.034 W around 2.367 μm was demonstrated in a plate-concave resonate. The laser bandwidth was measured as 10 nm. At the same time, the laser can be tuned in 100 nm range by angle-tuning method in research of tuning ability of the laser material.