Giant planar Hall effect arising from chiral anomaly, which is related to the Berry curvature, has been predicted and realized in nonmagnetic Dirac/Weyl semimetals. Here, we report the observation of the anisotropic planar Hall effect in type-II Weyl semimetal WTe2. Interestingly, we observed chiral-anomaly-induced sinusoidal angular dependent PHE when the electric field is parallel to the tilting direction of Weyl cone, i.e. b-axis of WTe2. The PHE amplitude is linearly dependent on the magnetic fields and decreases gradually as the temperature increases across the topological phase transition temperature. Our observations clearly revealed the footprints on transport from the chiral anomaly feature in type-II Weyl semimetals.