diff --git a/e2e_test/iceberg/test_case/cdc/load.slt b/e2e_test/iceberg/test_case/cdc/load.slt
index 2ac8ab2d61f25..de9c4dc1766c6 100644
--- a/e2e_test/iceberg/test_case/cdc/load.slt
+++ b/e2e_test/iceberg/test_case/cdc/load.slt
@@ -24,8 +24,8 @@ CREATE SINK s1 AS select * from products WITH (
     connector = 'iceberg',
     type = 'upsert',
     force_append_only = 'false',
-    database.name = 'demo',
-    table.name = 'demo_db.demo_table',
+    database.name = 'demo_db',
+    table.name = 'demo_table',
     catalog.type = 'storage',
     warehouse.path = 's3://icebergdata/demo',
     s3.endpoint = 'http://127.0.0.1:9301',
diff --git a/e2e_test/iceberg/test_case/iceberg_sink_append_only.slt b/e2e_test/iceberg/test_case/iceberg_sink_append_only.slt
index 5f847eaa30a7e..dff6737057363 100644
--- a/e2e_test/iceberg/test_case/iceberg_sink_append_only.slt
+++ b/e2e_test/iceberg/test_case/iceberg_sink_append_only.slt
@@ -23,8 +23,8 @@ CREATE SINK s6 AS select * from mv6 WITH (
     connector = 'iceberg',
     type = 'append-only',
     force_append_only = 'true',
-    database.name = 'demo',
-    table.name = 'demo_db.demo_table',
+    database.name = 'demo_db',
+    table.name = 'demo_table',
     catalog.type = 'storage',
     warehouse.path = 's3://icebergdata/demo',
     s3.endpoint = 'http://127.0.0.1:9301',
diff --git a/e2e_test/iceberg/test_case/iceberg_sink_upsert.slt b/e2e_test/iceberg/test_case/iceberg_sink_upsert.slt
index 646a39cc08e28..2e8ce54e1c742 100644
--- a/e2e_test/iceberg/test_case/iceberg_sink_upsert.slt
+++ b/e2e_test/iceberg/test_case/iceberg_sink_upsert.slt
@@ -12,8 +12,8 @@ CREATE SINK s6 AS select mv6.id as id, mv6.v1 as v1, mv6.v2 as v2, mv6.v3 as v3
     connector = 'iceberg',
     type = 'upsert',
     force_append_only = 'false',
-    database.name = 'demo',
-    table.name = 'demo_db.demo_table',
+    database.name = 'demo_db',
+    table.name = 'demo_table',
     catalog.type = 'storage',
     warehouse.path = 's3://icebergdata/demo',
     s3.endpoint = 'http://127.0.0.1:9301',
diff --git a/e2e_test/sink/iceberg_sink.slt b/e2e_test/sink/iceberg_sink.slt
index 9e7bef8d12239..dbc3163b70585 100644
--- a/e2e_test/sink/iceberg_sink.slt
+++ b/e2e_test/sink/iceberg_sink.slt
@@ -15,8 +15,8 @@ CREATE SINK s6 AS select mv6.v1 as v1, mv6.v2 as v2, mv6.v3 as v3 from mv6 WITH
     s3.secret.key = 'hummockadmin',
     s3.region = 'us-east-1',
     catalog.type = 'storage',
-    database.name='demo',
-    table.name='demo_db.demo_table'
+    database.name='demo_db',
+    table.name='demo_table'
 );
 
 statement ok
diff --git a/src/connector/src/sink/iceberg/mod.rs b/src/connector/src/sink/iceberg/mod.rs
index a54ac28f8c53f..4412388314cf5 100644
--- a/src/connector/src/sink/iceberg/mod.rs
+++ b/src/connector/src/sink/iceberg/mod.rs
@@ -61,6 +61,8 @@ use crate::sink::{Result, SinkCommitCoordinator, SinkParam};
 /// This iceberg sink is WIP. When it ready, we will change this name to "iceberg".
 pub const ICEBERG_SINK: &str = "iceberg";
 
+static RW_CATALOG_NAME: &str = "risingwave";
+
 #[derive(Debug, Clone, Deserialize, WithOptions)]
 #[serde(deny_unknown_fields)]
 pub struct IcebergConfig {
@@ -75,7 +77,7 @@ pub struct IcebergConfig {
     pub table_name: String, // Full name of table, must include schema name
 
     #[serde(rename = "database.name")]
-    pub database_name: String, // Use as catalog name.
+    pub database_name: String, // Database name of table
 
     // Catalog type supported by iceberg, such as "storage", "rest".
     // If not set, we use "storage" as default.
@@ -181,12 +183,12 @@ impl IcebergConfig {
         let catalog_type = self.catalog_type().to_string();
 
         iceberg_configs.insert(CATALOG_TYPE.to_string(), catalog_type.clone());
-        iceberg_configs.insert(CATALOG_NAME.to_string(), "risingwave".to_string());
+        iceberg_configs.insert(CATALOG_NAME.to_string(), RW_CATALOG_NAME.to_string());
 
         match catalog_type.as_str() {
             "storage" => {
                 iceberg_configs.insert(
-                    format!("iceberg.catalog.{}.warehouse", self.database_name),
+                    format!("iceberg.catalog.{}.warehouse", RW_CATALOG_NAME),
                     self.path.clone(),
                 );
             }
@@ -194,7 +196,7 @@ impl IcebergConfig {
                 let uri = self.uri.clone().ok_or_else(|| {
                     SinkError::Iceberg(anyhow!("`catalog.uri` must be set in rest catalog"))
                 })?;
-                iceberg_configs.insert(format!("iceberg.catalog.{}.uri", self.database_name), uri);
+                iceberg_configs.insert(format!("iceberg.catalog.{}.uri", RW_CATALOG_NAME), uri);
             }
             _ => {
                 return Err(SinkError::Iceberg(anyhow!(