diff --git a/common/config_loader.py b/common/config_loader.py
new file mode 100644
index 0000000..9fb75b6
--- /dev/null
+++ b/common/config_loader.py
@@ -0,0 +1,51 @@
+import json
+from dataclasses import dataclass
+from pathlib import Path
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+FENGHUANG_CONFIG = REPO_ROOT / "configs" / "config-fenghuang" / "config.json"
+GARUDA_CONFIG = REPO_ROOT / "configs" / "config-garuda" / "config.json"
+JIG_CONFIG = REPO_ROOT / "configs" / "config-jig" / "config.json"
+
+
+@dataclass(frozen=True)
+class Register:
+    label: str
+    address: int
+    data_type: str
+    object_type: str
+    show_as_hex: bool = False
+
+
+def load_data_sets(config_path):
+    with open(config_path, encoding="utf-8") as f:
+        raw = json.load(f)
+    return {ds["name"]: ds["data"] for ds in raw["data_sets"]}
+
+
+def load_registers(config_path, dataset_names=None):
+    data_sets = load_data_sets(config_path)
+    names = dataset_names or data_sets.keys()
+    registers = {}
+    for name in names:
+        for entry in data_sets[name]:
+            registers[entry["label"]] = Register(
+                label=entry["label"],
+                address=entry["address"],
+                data_type=entry["data_type"],
+                object_type=entry["object_type"],
+                show_as_hex=entry.get("show_as_hex", False),
+            )
+    return registers
+
+
+def load_fenghuang_registers(dataset_names=None):
+    return load_registers(FENGHUANG_CONFIG, dataset_names)
+
+
+def load_garuda_registers(dataset_names=None):
+    return load_registers(GARUDA_CONFIG, dataset_names)
+
+
+def load_jig_registers(dataset_names=None):
+    return load_registers(JIG_CONFIG, dataset_names)