In this paper, the authors consider the endpoint boundedness properties for the rough maximal Calderón commutator defined by \(\begin{aligned} T_{\Omega ,\,a}^*f(x)=\sup _{\epsilon>0}\Big |\int _{|x-y|>\epsilon }\frac{\Omega (x-y)}{|x-y|^{d+1}} \big (a(x)-a(y)\big )f(y)dy\Big |, \end{aligned}\) where \(\Omega \) is homogeneous of degree zero, integrable on \(S^{d-1}\) and has vanishing moment of order one, a is a function on \({\mathbb {R}}^d\) such that \(\nabla a\in L^{\infty }({\mathbb {R}}^d).\) The authors give an elemental method for establishing the weak type endpoint estimate of \(L\log \log L\) type for the maximal commutator \(T^*_{\Omega ,\,a},\) if \(\Omega \in L\log L(S^{d-1}).\)
