| Cover | Oct. 18, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | EOS Inc. |
| Entity Central Index Key | 0001651958 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | true |
| Document Period End Date | Oct. 18, 2021 |
| Entity Ex Transition Period | false |
| Entity File Number | 000-55661 |
| Entity Incorporation State Country Code | NV |
| Entity Tax Identification Number | 30-0873246 |
| Entity Address Address Line 1 | 7F.-1, No. 162, Sec. 2, Zhongshan N. Rd. |
| Entity Address Address Line 2 | Zhongshan District |
| Entity Address City Or Town | Taipei City |
| Entity Address Country | TW |
| Entity Address Postal Zip Code | 10452 |
| City Area Code | 886 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Local Phone Number | 2-2586-8300 |
