Chemical Oxygen-Iodine Laser operating in a pulsed mode makes it possible to generate pulses with power significantly exceeding the average laser power. Such a mode can find an application in processes in which the power is a crucial factor. They are ablation, cutting, frequency conversion due to nonlinear processes, etc. The different approaches can be used to obtain pulsed COIL operation. The Q-switch method, pulsed singlet oxygen generation and volume instantaneous generation of atomic iodine will be considered. The merits and demerits of every method are discussed below. The recent results on pulsed COIL are presented too.