| Document And Entity Information | 12 Months Ended |
| Dec. 31, 2022 | |
| Document Information Line Items | |
| Entity Registrant Name | SAI.TECH Global Corp |
| Document Type | F-3/A |
| Amendment Flag | true |
| Amendment Description | Amendment No. 1 |
| Entity Central Index Key | 0001847075 |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | #01-05 Pearl’s Hill Terrace |
| Entity Address, Country | SG |
| Entity Address, Postal Zip Code | 168976 |
| City Area Code | +65 |
| Local Phone Number | 9656 5641 |
| Business Contact | |
| Document Information Line Items | |
| Entity Address, Address Line One | 800 Capitol Street |
| Entity Address, Postal Zip Code | 77002 |
| City Area Code | 713 |
| Local Phone Number | 651-2600 |
| Contact Personnel Name | Winston & Strawn LLP |
| Entity Address, Address Line Two | Suite 2400Houston |
| Entity Address, State or Province | TX |
