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Nature often offers innovative solutions to complex problems, and in this context, inspiration is drawn from the remarkable abilities of deep\u2010sea snails, specifically their unique tentacles, often referred to as \u201ceyestalks\u201d due to the presence of an eye at their tip. Herein, \u201cDeepStalk,\u201d a soft robot designed for deep\u2010sea exploration, is introduced, utilizing three shape memory alloys (SMAs) springs that mimic the three tentacle flexor muscles of deep\u2010sea snails. Overall, DeepStalk incorporates sensory, actuation, and control modules for operation under high hydrostatic pressure. To achieve precise control of its orientation in 3D space, a simple and reliable vector\u2010PID controller is developed. Remarkably, the robot successfully maintains its desired bending attitude even at 30\u2009MPa hydrostatic pressure, achieved through the Joule heating of SMA springs. Furthermore, DeepStalk demonstrates the capability to track moving objects underwater, showcasing its potential application in challenging environments at depths of up to 20\u2009MPa. This marks\u00a0the first attempt for soft robots to integrate sensor, actuator, and control modules capable of complex tasks under high hydrostatic pressure. This innovative research advances\u00a0integrated soft robotic systems for deep\u2010sea exploration field.<\/jats:p>","DOI":"10.1002\/aisy.202300699","type":"journal-article","created":{"date-parts":[[2024,2,17]],"date-time":"2024-02-17T21:55:05Z","timestamp":1708206905000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["A Bioinspired Shape Memory Alloy Based Soft Robotic System for Deep\u2010Sea Exploration"],"prefix":"10.1002","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-4045-3484","authenticated-orcid":false,"given":"Yi","family":"Xu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University  Hangzhou 310027 China"},{"name":"Department of Engineering Mechanics Zhejiang University  Hangzhou 310027 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