In this paper, we study a multiuser distributed antenna system with simultaneous wireless information and power transmission under the assumption of imperfect channel state information (CSI). Considering CSI errors, the minimum signal-to-interference-plus-noise ratio (SINR) is maximized subject to individual energy harvesting constraint for each mobile station by jointly designing beamforming and the power splitting (PS). First, an efficient algorithm is proposed to convert the original problem to a set of "dual" min-max power balancing problems. Then, an semi-definite programming based iterative algorithm is developed to achieve a local optimal rank-one solution.