In this work a laboratory NdrYAG laser system is designed, constructed, and operated. The system operates with a high repetition rate of 10 pulse per second (pps). Laser pulses of 1.06 u.m wavelength and output energy of about 36 mJ with a pulsewidth equal to 11.5 ns, are obtained, using passive Q-switching technique. A linear flashlamp filled with xenon gas is used to pump the active medium. The active medium is an Nd:YAG crystal with a length of 4.5 cm and a diameter of 0.5 cm. The flashlamp and the active medium are mounted inside an elliptical reflector coated with gold. The reflector is mounted inside a cavity, which is locally made from aluminum. The optical resonator consists of two reflecting plane mirrors. The output mirror of 54% reflectivity, and the other mirror (prism) having a total reflectivity of about 99% with BDN-1 dye foil film fixed on it for the Q-switching process. The charging and triggering circuits of the power supply have been designed and constructed. The charging circuit is designed to give a potential of 1000 V, a current pulse of 800 A, and pulse duration of 190 u,s to operate the flashlamp. Water cooling system with temperature control ability has been used. The best cooling temperature has been found to be 25 C°. This laser system showed good operating stability within the optimum cooling conditions inferred during the work.