diff --git a/packages/backend/migration/1642611822809-emoji-url.js b/packages/backend/migration/1642611822809-emoji-url.js
new file mode 100644
index 000000000..509def312
--- /dev/null
+++ b/packages/backend/migration/1642611822809-emoji-url.js
@@ -0,0 +1,15 @@
+const { MigrationInterface, QueryRunner } = require("typeorm");
+
+module.exports = class emojiUrl1642611822809 {
+		name = 'emojiUrl1642611822809'
+
+		async up(queryRunner) {
+			await queryRunner.query(`ALTER TABLE "emoji" RENAME COLUMN "url" TO "originalUrl"`);
+			await queryRunner.query(`ALTER TABLE "emoji" ADD "publicUrl" character varying(512) NOT NULL DEFAULT ''`);
+		}
+
+		async down(queryRunner) {
+			await queryRunner.query(`ALTER TABLE "emoji" DROP COLUMN "originalUrl"`);
+			await queryRunner.query(`ALTER TABLE "emoji" RENAME COLUMN "originalUrl" TO "url"`);
+		}
+}
diff --git a/packages/backend/src/misc/populate-emojis.ts b/packages/backend/src/misc/populate-emojis.ts
index b021ec46e..d808ab25f 100644
--- a/packages/backend/src/misc/populate-emojis.ts
+++ b/packages/backend/src/misc/populate-emojis.ts
@@ -62,7 +62,7 @@ export async function populateEmoji(emojiName: string, noteUserHost: string | nu
 	if (emoji == null) return null;
 
 	const isLocal = emoji.host == null;
-	const url = isLocal ? emoji.url : `${config.url}/proxy/image.png?${query({ url: emoji.url })}`;
+	const url = isLocal ? emoji.publicUrl : `${config.url}/proxy/image.png?${query({ url: emoji.publicUrl })}`;
 
 	return {
 		name: emojiName,
diff --git a/packages/backend/src/models/entities/emoji.ts b/packages/backend/src/models/entities/emoji.ts
index 1146908a8..2e9c11d21 100644
--- a/packages/backend/src/models/entities/emoji.ts
+++ b/packages/backend/src/models/entities/emoji.ts
@@ -32,13 +32,19 @@ export class Emoji {
 	@Column('varchar', {
 		length: 512,
 	})
-	public url: string;
+	public originalUrl: string;
+
+	@Column('varchar', {
+		length: 512,
+	})
+	public publicUrl: string;
 
 	@Column('varchar', {
 		length: 512, nullable: true,
 	})
 	public uri: string | null;
 
+	// publicUrlの方のtypeが入る
 	@Column('varchar', {
 		length: 64, nullable: true,
 	})
diff --git a/packages/backend/src/models/repositories/emoji.ts b/packages/backend/src/models/repositories/emoji.ts
index 9d63ced81..b9dc6ed0a 100644
--- a/packages/backend/src/models/repositories/emoji.ts
+++ b/packages/backend/src/models/repositories/emoji.ts
@@ -15,7 +15,8 @@ export class EmojiRepository extends Repository<Emoji> {
 			name: emoji.name,
 			category: emoji.category,
 			host: emoji.host,
-			url: emoji.url,
+			// || emoji.originalUrl してるのは後方互換性のため
+			url: emoji.publicUrl || emoji.originalUrl,
 		};
 	}
 
diff --git a/packages/backend/src/queue/processors/db/export-custom-emojis.ts b/packages/backend/src/queue/processors/db/export-custom-emojis.ts
index 764356385..98a8053d8 100644
--- a/packages/backend/src/queue/processors/db/export-custom-emojis.ts
+++ b/packages/backend/src/queue/processors/db/export-custom-emojis.ts
@@ -71,7 +71,7 @@ export async function exportCustomEmojis(job: Bull.Job, done: () => void): Promi
 		let downloaded = false;
 
 		try {
-			await downloadUrl(emoji.url, emojiPath);
+			await downloadUrl(emoji.originalUrl, emojiPath);
 			downloaded = true;
 		} catch (e) { // TODO: 何度か再試行
 			logger.error(e);
diff --git a/packages/backend/src/queue/processors/db/import-custom-emojis.ts b/packages/backend/src/queue/processors/db/import-custom-emojis.ts
index ba4e3f0c0..d2b0eb269 100644
--- a/packages/backend/src/queue/processors/db/import-custom-emojis.ts
+++ b/packages/backend/src/queue/processors/db/import-custom-emojis.ts
@@ -67,8 +67,9 @@ export async function importCustomEmojis(job: Bull.Job<DbUserImportJobData>, don
 				category: emojiInfo.category,
 				host: null,
 				aliases: emojiInfo.aliases,
-				url: driveFile.url,
-				type: driveFile.type,
+				originalUrl: driveFile.url,
+				publicUrl: driveFile.webpublicUrl ?? driveFile.url,
+				type: driveFile.webpublicType ?? driveFile.type,
 			}).then(x => Emojis.findOneOrFail(x.identifiers[0]));
 		}
 
diff --git a/packages/backend/src/remote/activitypub/models/note.ts b/packages/backend/src/remote/activitypub/models/note.ts
index a0fdf7f23..8bec0d6aa 100644
--- a/packages/backend/src/remote/activitypub/models/note.ts
+++ b/packages/backend/src/remote/activitypub/models/note.ts
@@ -347,7 +347,8 @@ export async function extractEmojis(tags: IObject | IObject[], host: string): Pr
 			host,
 			name,
 			uri: tag.id,
-			url: tag.icon!.url,
+			originalUrl: tag.icon!.url,
+			publicUrl: tag.icon!.url,
 			updatedAt: new Date(),
 			aliases: [],
 		} as Partial<Emoji>).then(x => Emojis.findOneOrFail(x.identifiers[0]));
diff --git a/packages/backend/src/remote/activitypub/renderer/emoji.ts b/packages/backend/src/remote/activitypub/renderer/emoji.ts
index 9d08c8ba8..0c0bc382f 100644
--- a/packages/backend/src/remote/activitypub/renderer/emoji.ts
+++ b/packages/backend/src/remote/activitypub/renderer/emoji.ts
@@ -9,6 +9,6 @@ export default (emoji: Emoji) => ({
 	icon: {
 		type: 'Image',
 		mediaType: emoji.type || 'image/png',
-		url: emoji.url,
+		url: emoji.publicUrl,
 	},
 });
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
index 72adda9dc..1dfeae262 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
@@ -45,8 +45,9 @@ export default define(meta, async (ps, me) => {
 		category: null,
 		host: null,
 		aliases: [],
-		url: file.url,
-		type: file.type,
+		originalUrl: file.url,
+		publicUrl: file.webpublicUrl ?? file.url,
+		type: file.webpublicType ?? file.type,
 	}).then(x => Emojis.findOneOrFail(x.identifiers[0]));
 
 	await getConnection().queryResultCache!.remove(['meta_emojis']);
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
index de239c4f0..4f5373979 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
@@ -54,7 +54,7 @@ export default define(meta, async (ps, me) => {
 
 	try {
 		// Create file
-		driveFile = await uploadFromUrl(emoji.url, null, null, null, false, true);
+		driveFile = await uploadFromUrl(emoji.originalUrl, null, null, null, false, true);
 	} catch (e) {
 		throw new ApiError();
 	}
@@ -65,9 +65,9 @@ export default define(meta, async (ps, me) => {
 		name: emoji.name,
 		host: null,
 		aliases: [],
-		url: driveFile.url,
-		type: driveFile.type,
-		fileId: driveFile.id,
+		originalUrl: driveFile.url,
+		publicUrl: driveFile.webpublicUrl ?? driveFile.url,
+		type: driveFile.webpublicType ?? driveFile.type,
 	}).then(x => Emojis.findOneOrFail(x.identifiers[0]));
 
 	await getConnection().queryResultCache!.remove(['meta_emojis']);
diff --git a/packages/backend/src/services/note/reaction/create.ts b/packages/backend/src/services/note/reaction/create.ts
index e0baa6a09..2e68420c1 100644
--- a/packages/backend/src/services/note/reaction/create.ts
+++ b/packages/backend/src/services/note/reaction/create.ts
@@ -87,7 +87,7 @@ export default async (user: { id: User['id']; host: User['host']; }, note: Note,
 	if (emoji) {
 		emoji = {
 			name: emoji.host ? `${emoji.name}@${emoji.host}` : `${emoji.name}@.`,
-			url: emoji.url,
+			url: emoji.publicUrl,
 		} as any;
 	}