It is important to distinguish between "Basic Conqueror's Haki" and "Supreme/Advanced Conqueror's Haki," as Luffy has used the basic version much earlier in the series.
If you want to see Luffy use the Advanced form of Supreme Haki (coating his fists without touching the enemy), the specific episode is:
If you want to see the first time Luffy uses Basic Supreme Haki to knock out fodders: which episode luffy use supreme haki
It is important to note: Gear 5 (Episode 1071) is not Supreme Haki. Gear 5 is the awakening of Luffy's Devil Fruit (Hito Hito no Mi, Model: Nika). However, Luffy combines Gear 5 with his Advanced Supreme Haki in later episodes (1076+), creating the most powerful version of the character seen to date.
To understand the episode numbers, you must distinguish between the two forms of Haoshoku: It is important to distinguish between "Basic Conqueror's
If you search "which episode Luffy use supreme haki," you might also be looking for these milestone moments:
| Episode | Haki Type | The Feat | | :--- | :--- | :--- | | Episode 523 | Basic Supreme Haki | Luffy unconsciously knocks out 50,000 Fishman pirates at once. | | Episode 914 | Basic Supreme Haki | Luffy and Katakuri clash with Supreme Haki, splitting the sky in a small area. | | Episode 1028 | Advanced (Infusion) | Luffy punches Kaido without touching him (Internal Destruction). | | Episode 1076 | Advanced (Infusion) | Luffy splits the sky above Wano, confirming he is a true Yonko-level conqueror. | If you want to see the first time
Luffy uses his "Supreme King" Haki (also known as Conqueror's Haki) at various points, but he uses the advanced form—often called Advanced Conqueror’s Haki or Infusion—in Episode 1014 during his fight against Kaido.
If you are referring to the first time he uses the basic "Knockout" version of Conqueror's Haki, that occurs during the Marineford Arc (Episode 478), where he unknowingly knocks out the executioners preparing to kill Ace.