In this paper, we extend the discriminant correlation filter (DCF) based deep learning tracker to multi-object tracking. For each object, we use an individual tracker to estimate the position. Two different pre-trained networks are used as feature extractors, respectively. The response peak and oscillation are both considered to validate the tracking. When the object is lost, the discriminative appearance model achieved by DCF is considered as a part of the feature representation between the object and detection for data association. In order to validate our method, we analyze and test our approach on the MOT2D2015 and MOT17 benchmarks for multiple pedestrian tracking. The results show that our approach performs superiorly against several recent state-of-the-art online multi-object trackers.