In this paper,we develop semi-classical analysis on H-type groups.We define semi-classical pseudodifferential operators,prove the boundedness of their action on square integrable functions and develop a symbolic calculus.Then,we define the semi-classical measures of bounded families of square integrable functions which consist of a pair formed by a measure defined on the product of the group and its unitary dual,and by a field of trace class positive operators acting on the Hilbert spaces of the representations.We illustrate the theory by analyzing examples,which show in particular that this semi-classical analysis takes into account the finite-dimensional representations of the group,even though they are negligible with respect to the Plancherel measure.