The parliament has become so vital part of the government in modern states that military rulers – dictators in true sense – have to adopt them even though the military rulers do not need parliament as an integral part of their politics and policies. In Pakistan martial law was enforced in 1958 in consequence of which military ruler General Ayub Khan enforced his tailor-made constitution in 1962. The Constitution envisaged a National Assembly as the legislature and parliament of Pakistan. The members of Assembly were elected by the electoral college of basic democrats. This was a unicameral parliament. Following study has looked into the formation, functions and powers of the parliament during General Ayub regime. It compares the use of parliamentary institutions in military regimes of other countries with those of Pakistan during Ayub regime. The working of parliament under military rule of Ayub Khan has been evaluated. This study, however, while dealing with the history of parliament during the period of General Ayub Khan, also tries to test hypothesis “The dictatorship negatively impacts upon the institutionalization of the Parliament.” The main question of the research is “How could parliament function and assert its institutionalization under a military ruler in modern & developing countries?” To find out the process of elections, working, and legislation in the parliament during Ayub era, we look how the debates of parliament were influenced by President General Ayub Khan. Secondly the election process has been examined to look into the influence of President in terms of elections. Thirdly the formation, function and decisions of different committees have been investigated to find out the influence of the President. Fourthly legislation and procedure of approval of different bills are studied in the light of the strategy of making ordinances on behalf of president. In other words, all ordinances and bills have been analyzed so that the influence of President Ayub may be assessed. The outcome of the research is that the military dictator used the institution of parliament just for his convenience to continue his military rule. The parliamentarians also did not assert the sovereignty and independence of the institution and became just tools in the hands of military dictator.