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Adopting foil gauge test technology, the dynamic test to circle dynamic strain of wet cylinder liner of naturally aspirated and intercooled diesel engine under the condition of full load characteristic has been done, the circle deformation curve of cylinder liner while working was fit, the deformation characteristic of wet cylinder liner and the main influence factor of the different type diesel engine were comparatively analyzed. The results indicated, with the increase of rotational speed, the strain of the main thrust face of cylinder liner of naturally aspirated diesel engine increased, and a vibration characteristic gradually was presented. But the influence of the increase of rotational speed to the circle strain of intercooled diesel engine was not obvious. The maximum value of the main thrust face strain of cylinder liner appeared in the rated torque condition where every force did most work to the surface of cylinder liner.