Seaman Training Centre, was established in Juldia East Pakistan in 1960 to conduct training of ratings for employment on national fleet and foreign flag ships. Since then it was functioning at different locations under make shift arrangements. As the developments and revolutionary changes in the operational and manning systems demanded training of ratings on realistic and firm footings to suite the modern ships, working environment, the need was felt to set up a proper training facility for in-resident trainees to keep the trainees in resident, so that discipline and ship-life culture can be inculcated in them to promote cooperation and sense of comradeship. Consequently the PC-I was prepared to set up proper training centre to achieve above-mentioned objectives. 

On the other hand with the debacle of East Pakistan and consequent loss of Juldia Marine Academy (Chittagong) in 1971; Pakistan Marine Academy (PMA) was set up here in Karchi, and was housed temporarily in the barracks of Haji Camp which was also STC’s temporary campus at that time. This PMA also required its proper Campus with all the training facilities for cadets of both streams viz a viz namely, Nautical and Engineering. So it was decided to put both the training institutions in the same campus, so that optimism use of training facilities could be made through sharing them together. Thus a project was proposed for Pakistan Maritime Academy. In 1979 both the institutions (i.e PMA & STC) were shifted inside, at the existing location of this complex at Mauripur road Karachi. Both, these organizations continued working independently as sub-ordinate offices of Ports & Shipping Wing; Ministry of Communications until May, 1997; when these were merged together. Commandant PMA is head of the Pakistan Maritime Academy and OI/C is the Incharge of STW. Seamen Training Centre (STC) was renamed as Seamen Training Wing (STW).