AbstractThe main objective of this research is to review the effect of plyometric training administered for six weeks period in order to produce power and the quickness of the leg among 13 and 14 years old soccer player in Malacca. Beside, this research is to review the changes that occur in six weeks training period. For that reason two additional test had been done beside pre and post test in second week and the fourth week. It was done in Malacca Sport School that is Sekolah Menengah Kebangsaan Seri Kota. The test subject consist of 33 footballer aged 13 and 14 years old. Subject were divided into two groups, experimental group (n = 17) underwent plyometric training program and the other were control group (n = 16) underwent the usual training program without plyometric training. Experimental research methodology had been used in this research to obtain data through the test item, that is Vertical Jump to measure leg power and 30 meter sprint test to measure leg quickness. Data collected we.....