Big Data and AI have transformed Earth sciences, enabling data-driven discovery. While digital infrastructures have simplified access for most, deep-time geoscience faces challenges with scattered heterogeneous data and traditional theoretical methods. To overcome this, we propose the Deep-time Platform—a one-stop online research platform for geoscientists. Utilizing cloud computing and advanced tech, it offers open access to deep-time geoscientific data, knowledge, models, and computing power. The Deep-time Engine ensures seamless coordination. The Platform is aimed at enabling and empowering global geoscientists’ collaborative innovation and discoveries. The Deep-time Platform is a significant advancement in geoscientific exploration, fostering global collaboration and promoting a data-driven research paradigm within the framework of open science.