shows the character peak of PLA/MCC composites. The spectrum did not reveal any new peak when MCC was added. The absence of new peak suggest that the lower amount of filler used to produce the composites film only physically interacted between PLA and MCC rather than chemical interaction. This result is similar to the one reported by Qu, Goa, Wu, and Zhang (2010) when cellulose nanofibrils was used to reinforce PLA. The peak at 1757 cm−1 which is corresponding to Cdouble bond; length as m-dashO become broader, when the percentage of MCC added increased. According to Qu, Goa, Wu, and Zhang (2010) this was attributed to the interaction between Cdouble bond; length as m-dashO from PLA and the Osingle bondH groups from MCC. It is interesting to note that, the relatively small peaks between 3200 and 3400 cm−1 (Osingle bondH bond stretching deformation of PLA) disappeared in PLA/MCC composites. The peak shifted to a broad peak approximately at 3350 cm−1 and increased intensity as the percentage of MCC was increased. The similar finding has been reported earlier by Yew, Mohd Yusof, Mohd Ishak, and Ishiaku (2005), when PLA matrix was filled with rice starch.