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However, creating stepwise detachable and degradable robots at the microscale remains challenging. Herein, we report stepwise detachable and degradable microrobots (\u223c50\u00a0\u00b5m) fabricated from a single hydrogel using spatially graded direct laser writing (SGDLW), much smaller than previously reported detachable robots. SGDLW precisely controls local laser exposure dose, thereby programming microstructure crosslinking density, resulting in controllable cross\u2010sectional porosity ranging from 17.6% to 37.2%, and ultimately adjusting the degradation time (from 2\u00a0min to 44\u00a0min). By encoding different local crosslinking densities, microstructures capable of single\u2010step detachment are designed, including artificial microflowers, microdandelions, and microfish eggs. Moreover, multi\u2010step detachment of microtrees and microdandelions can be achieved with minute\u2010scale temporal programmability. Finally, bioinspired microrobots demonstrate promising functionalities of adjustable locomotion and drug delivery, underscoring their potential in microrobotics and targeted drug delivery.<\/jats:p>","DOI":"10.1002\/adma.75013","type":"journal-article","created":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T06:14:01Z","timestamp":1789625641000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Femtosecond Laser Writing of Stepwise Detachable and Biodegradable Microrobots for Adjustable Locomotion and Drug Delivery"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-8885-0339","authenticated-orcid":false,"given":"Chen","family":"Xin","sequence":"first","affiliation":[{"name":"Institute of Humanoid Robots Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes Department of Precision Machinery and Precision Instrumentation University of Science and 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