diff --git a/backend/src/database/schemas/audit_logs.ts b/backend/src/database/schemas/audit_logs.ts
new file mode 100644
index 0000000..7e25c4a
--- /dev/null
+++ b/backend/src/database/schemas/audit_logs.ts
@@ -0,0 +1,25 @@
+import { pgTable, varchar, timestamp, uuid, index, jsonb } from 'drizzle-orm/pg-core';
+import { users } from './users';
+
+export const auditLogs = pgTable('audit_logs', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  userId: uuid('user_id').references(() => users.uuid, { onDelete: 'set null' }), // L'utilisateur qui a fait l'action
+  action: varchar('action', { length: 64 }).notNull(), // ex: 'PII_ACCESS', 'USER_DELETE', 'ROLE_CHANGE'
+  entityType: varchar('entity_type', { length: 64 }).notNull(), // ex: 'users', 'contents'
+  entityId: uuid('entity_id'), // ID de l'entité concernée
+  
+  // Détails de l'action pour la conformité
+  details: jsonb('details'), // Données supplémentaires (ex: quelles colonnes ont changé)
+  ipHash: varchar('ip_hash', { length: 64 }), // IP de l'auteur (hachée pour RGPD)
+  userAgent: varchar('user_agent', { length: 255 }),
+  
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+}, (table) => ({
+  userIdIdx: index('audit_logs_user_id_idx').on(table.userId),
+  actionIdx: index('audit_logs_action_idx').on(table.action),
+  entityIdx: index('audit_logs_entity_idx').on(table.entityType, table.entityId),
+  createdAtIdx: index('audit_logs_created_at_idx').on(table.createdAt),
+}));
+
+export type AuditLogInDb = typeof auditLogs.$inferSelect;
+export type NewAuditLogInDb = typeof auditLogs.$inferInsert;