We  conduct numerical investigations on the  critical collapse  of spherically symmetric  massless scalar fields in asymptotically anti-de Sitter spacetime. Our primary focus is on the behavior of the critical amplitude under various initial configurations of the scalar field. Through our numerical results, we obtain a formula that determines critical amplitude   A^∗ in terms of cosmological constant Λ: A^∗  ∝ (0.01360σ/v0 +0.001751)Λ, where σ denotes the initial width of the scalar field and  v0 is the initial position of the scalar field. Notably, we highlight that the slope of this linear relationship depends on the initial configuration of the scalar field.