Spiral cine DENSE is an established method for imaging myocardial strain, however a relatively long acquisition time is a limitation. We developed a simultaneous multislice (SMS) method to accelerate spiral cine DENSE imaging. For SMS excitation we employed CAIPIRINHA phase modulation of the multiple slices. For the SMS reconstruction, we implemented a modified iterative conjugate gradient sensitivity encoding (CG-SENSE) method. Simulations and experiments in phantoms show that a 10-15% error occurs when imaging two slices simultaneously. Two-slice volunteer SMS images showed close agreement with separately-acquired single-slice images. SMS with CG-SENSE may be an effective means to accelerate spiral cine DENSE.