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Here, we report a photothermal ablation blotting (PAB) strategy for engineering perfusable, robust, and hierarchically branched microvascular network within a hydrogel matrix. This approach leverages bioresorbable photothermal fibers (PTF) that act as a sculpting template, enabling multiple diameters of controlled microchannel formation upon sequential near\u2010infrared (NIR) and UV activation while simultaneously enhancing the mechanical toughness of the hydrogel via fiber reinforcement. The resulting photothermal microchannel hydrogel (PMH) supports efficient perfusion and cellular infiltration in vitro, and facilitates vascular integration and tissue remodeling in vivo through both rat subcutaneous and myocardial infarction (MI) models. 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