Integrating triboelectric nanogenerator (TENG) and sensor into a single smart textile is considered an excellent flexible platform that greatly enhances the convenience and comfort of wearable self-powered sensing products. However, conventional textiles typically use rigid metal electrodes for stable electrical signal transmission, which can compromise the wearability and comfort of the smart textiles. Therefore, the challenge lies in avoiding the use of rigid metal electrodes while achieving efficient electrical signal transmission in an all-textile TENG system. Here, an all-textile 3D TENG sensor based on bidirectional cross-weaving binary-yarns offers excellent flexibility without the need for rigid metal electrodes. Using wet spinning and concentric sheath-core coating technology, we fabricated robust, flexible, three-layer coaxial structure yarns of TPU@Ag@TPU/AgNW and TPU@Ag@PDMS, which were further utilized as friction-paired yarns for TENGs. Subsequently, a three-dimensional bidirectional cross-weaving strategy was employed to integrate the coaxial yarns into PPy-coated fabric (T-PPy), thereby achieving a higher density of sensitive pixel active-matrix within a constrained unit area. This sophisticated 3D TENG holds profound implications for the fabric's ability to respond to myriad external mechanical stimuli, providing precise monitoring of stress changes across irregular surfaces and enabling the generation of ultra-fine stress distribution maps. The harvested power from the biomechanical/motion energy can sustainably charge commercial capacitors and power LED lights, demonstrating exceptional biomechanical energy harvesting capability and achieving an output power density of up to 7.2 mW/m. Additionally, it achieves an impressive sensitivity of 36.9 kPa and provides a broad pressure detection range of up to 33 kPa. These discoveries pave the way for the development of large-area, flexible, comfortable, and all-textile-based electronics, offering valuable insights into smart textiles.