Abstract:The aim of this paper is to investigate the bifurcation and chaotic behaviour in the two-parameter family of transcendental functions f λ,n (x) = λ x (e x +1) n , λ > 0, x ∈ R, n ∈ N\{1} which arises from the generating function of the generalized Apostol-type polynomials. The existence of the real fixed points of f λ,n (x) and their stability are studied analytically and the periodic points of f λ,n (x) are computed numerically. The bifurcation diagrams and Lyapunov exponents are simulated; these demonstrate chaotic behaviour in the dynamical system of the function f λ,n (x) for certain ranges of parameter λ.