The study on the jump-like character of creep of differing in their morphology polymers was continued. The creep processes were recorded using the method of laser interferometry, allowing investigations on strain rate inhomogeneity on micron level and determination of strain jump parameters. Polyester resins and filled composites based on them were used as objects of the investigation. It is shown that the characteristics of jump-like creep change considerably depending on material composition and strain stage. It is assumed that the strain jumps on micron level reflect the presence of ordered formations of the same scale in the structure, as well as their transformations.