we present a new type of stretchable strain sensor with high sensitivities not only to tensile but also to compressive strains. Using single-step direct transfer patterning, ion-based metal nano-ink was transferred from the donor substrate to the micro-structured PDMS stamp and used as a sensing material as well as an electrode, which is a very simple and low-cost process. The fabricated strain sensor based on the micro-cracks of a metal nanoparticle thin film on the PDMS stamp can be stretched up to 20% strain with high durability and high strain sensitivity. Also, we demonstrated that the fabricated strain sensor could be used as a wearable human motion detection device for fingers and wrists. In addition, a flexible pressure sensor with high sensitivity as well as fast response and recovery to the low pressure (