| Cover | Feb. 02, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 2, 2022 |
| Entity File Number | 001-40764 |
| Entity Registrant Name | CHW Acquisition Corporation |
| Entity Central Index Key | 0001842356 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 2 Manhattanville Road |
| Entity Address, Address Line Two | Suite 403 |
| Entity Address, City or Town | Purchase |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10577 |
| City Area Code | 914 |
| Local Phone Number | 603-5016 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one Ordinary Share, par value $0.0001 par share, and one Redeemable Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Ordinary Share, par value $0.0001 par share, and one Redeemable Warrant |
| Trading Symbol | CHWAU |
| Security Exchange Name | NASDAQ |
| Ordinary Shares, par value $0.0001 per share, included as part of the Units [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Ordinary Shares, par value $0.0001 per share, included as part of the Units |
| Trading Symbol | CHWA |
| Security Exchange Name | NASDAQ |
| Redeemable Warrants included as part of the Units, each warrant exercisable for one Ordinary Share at an exercise price of $11.50 per share [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable Warrants included as part of the Units, each warrant exercisable for one Ordinary Share at an exercise price of $11.50 per share |
| Trading Symbol | CHWAW |
| Security Exchange Name | NASDAQ |
