<b>Illustrative Review on Needle Free Injection Technology</b> Needle free injection technology was developed in order to initiate reduction in the number of needle stick accidents and associated issues. An extensive literature review was completed in thought with needle free injection technology and its applications, edges over needle injections, their components and types such as powder injection, liquid injection, or projectile injection. This review provides a description on needle free injection technology considering the involvement of generation of force by using compressed gas upon actuation in order to deliver a drug at very high speed through a nozzle. Also injection methods that use a spring load jet injector, battery powdered jet injector, and gas powdered jet injector are described. An overview of marketed merchandise, recent trends and other needle free drug delivery systems is given. Needle free injection technology is growing and has the potential to make the administration of drugs more economical, safe and convenient. Needle Free injection, Mhi 500, Recojet, Biojectorr 2000, Vitajet 3, Cool click. 551-555 Issue-1 Volume-4 Indrajeet. B. Pawar | Prashant. H. Khade | Sujit. S. Kakade