Season 6 of The Mask Singer AKA The Mask Line Thai (ลายไทย) premiered on October 25, 2018, and concluded on March 7, 2019. It was hosted by Kan Kantathavron.
This is the first season the show decided to use Thai cultures as its main theme. Instead of of dividing masked celebrities as A, B, C, and D groups, this season grouped them into Mei Ek (ไม้เอก), Mai Tho (ไม้โท), Mai Tri (ไม้ตรี), and Mai Chattawa (ไม้จัตวา) which are Thai tone marks.
Panel of Judges[]
| No. | Name | Profession |
|---|---|---|
| 1 | Maneenuch Smerasut | Singing Teacher |
| 2 | Jakkawal Saothongyuttitum | Music Producer, Composer |
| 3 | Yuttana Boon-Orm | Music Company Executive |
| 4 | Siriporn Yooyord | Singer, Comedian |
| 5 | Kiattisak Udomnark | Presenter |
| 6 | Thanawat Prasitsomporn | DJ |
| 7 | Nalin Hohler | Singer, Actress |
| 8 | Kapol Thongplub | DJ, Presenter |
| 9 | Seo Ji-yeon | Singer, Actress |
| 10 | Puttachat Pongsuchat | DJ, Actress |
| 11 | Apissada Kreurkongka | Actress, Model |
| 12 | Saksit Vejsupaporn | Singer, Pianist |
| 13 | Sireeporn Yoogthatat | Actors, Presenters |
| 14 | Nattawut Srimork | Rapper, Songwriter |
| 15 | Issara Kitnitchi | Singer |
| 16 | Pidsanu Nimsakul | Singer, Actor |
| 17 | Supachai Srivijit | Actor-manager, Actor |
Contestant Progress[]
| Rank | Photo | Contestant/Celebrity | Ep.1 | Ep.2 | Ep.3 | Ep.4 | Ep.5 | Ep.6 | Ep.7 | Ep.8 | Ep.9 | Ep.10 | Ep.11 | Ep.12 | Ep.13 | Ep.14 | Ep.15 | Ep.16 | Ep.17 | Ep.18 | Ep.19 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mai Ek | Mai Tho | Mai Tri | Mai Tho | Mai Ek | Mai Tri | Mai Chattawa | |||||||||||||||
| 1st |  |
Tuk-Tuk หน้ากากตุ๊กตุ๊ก Prang Prangthip |
SAFE | SAFE | WIN | SAFE | SAFE | 1st | |||||||||||||
| 2nd |  |
Manora หน้ากากมโนราห์ Pin Pornchanok |
SAFE | SAFE | WIN | SAFE | SAFE | 2nd | |||||||||||||
| 3rd |  |
Duckweed หน้ากากจอกแหน Mariam Alkalali |
SAFE | SAFE | WIN | SAFE | ELIM | ||||||||||||||
| 4th |  |
Konja Cat หน้ากากแมวโกนจา Matang Radupdao |
SAFE | SAFE | WIN | ELIM | |||||||||||||||
| 5th Mai Chattawa |
 |
Bamboo หน้ากากกอไผ่ Chompoo Fruity |
SAFE | SAFE | ELIM | ||||||||||||||||
| 6th Mai Chattawa |
 |
Banana Leaf หน้ากากใบตอง Mew Boom Boom Cash |
SAFE | ELIM | |||||||||||||||||
| 6th Mai Chattawa |
 |
Coconut Shell หน้ากากกะลา Mon Warisara |
SAFE | ELIM | |||||||||||||||||
| 7th Mai Chattawa 2 |
 |
Takraw หน้ากากตะกร้อ Tik Playground |
ELIM | ||||||||||||||||||
| 7th Mai Chattawa 1 |
 |
Silk หน้ากากผ้าไหม Mum Jokmok |
ELIM | ||||||||||||||||||
| 5th Mai Tri |
 |
Green Giant & Red Giant หน้ากากยักษ์เขียวยักษ์แดง Sirasak & Chawin |
SAFE | SAFE | ELIM | ||||||||||||||||
| 6th Mai Tri |
 |
Kratip หน้ากากกระติ๊บ Most Witsarut |
SAFE | ELIM | |||||||||||||||||
| 6th Mai Tri |
 |
Thai Loincloth หน้ากากผ้าขาวม้า Saranya Sonsersawat |
SAFE | ELIM | |||||||||||||||||
| 5th Mai Ek |
 |
Thai Warrior หน้ากากนักรบไทย Natthew |
SAFE | SAFE | ELIM | ||||||||||||||||
| 6th Mai Ek |
 |
Threshing Basket หน้ากากกระด้ง Por Unnop |
SAFE | ELIM | |||||||||||||||||
| 6th Mai Ek |
 |
Benjarong หน้ากากเบญจรงค์ Arm Kornkan |
SAFE | ELIM | |||||||||||||||||
| 5th Mai Tho |
 |
Water Buffalo หน้ากากควายไทย Toom-Tam Yuttana |
SAFE | SAFE | ELIM | ||||||||||||||||
| 6th Mai Tho |
 |
Foi Thong หน้ากากฝอยทอง Mint Mintita |
SAFE | ELIM | |||||||||||||||||
| 6th Mai Tho |
 |
Dara Thong หน้ากากดาราทอง Pui Duangpon |
SAFE | ELIM | |||||||||||||||||
| 7th Mai Tri 2 |
 |
Horse-Faced Woman หน้ากากแก้วหน้าม้า Seo Ji-yeon |
ELIM | ||||||||||||||||||
| 7th Mai Tri 1 |
 |
Kinnaree หน้ากากกินรี Waii |
ELIM | ||||||||||||||||||
| 7th Mai Tho 2 |
 |
Albino Elephant หน้ากากช้างเผือก Pexky Sretunya |
ELIM | ||||||||||||||||||
| 7th Mai Tho 1 |
 |
Singha หน้ากากสิงห์ Tai Tanawut |
ELIM | ||||||||||||||||||
| 7th Mai Ek 2 |
 |
Rice Sheaf หน้ากากรวงข้าว Poppy Prachyaluck |
ELIM | ||||||||||||||||||
| 7th Mai Ek 1 |
 |
Fighting Fish หน้ากากปลากัด Ploychompoo |
ELIM | ||||||||||||||||||
- █ The contestant won The Mask Singer.
- █ The contestant was a runner-up.
- █ The contestant was safe from elimination.
- █ The contestant was eliminated.
- █ The contestant did not participate in the episode.
- █ The contestant was in Mai Ek.
- █ The contestant was in Mai Tho.
- █ The contestant was in Mai Tri.
- █ The contestant was in Mai Chattawa.