diff --git a/M02_MasterTemplete/DataFlow/M02_DF_Compute.py b/M02_MasterTemplete/DataFlow/M02_DF_Compute.py
index 01f9c20c8..cef97b616 100644
--- a/M02_MasterTemplete/DataFlow/M02_DF_Compute.py
+++ b/M02_MasterTemplete/DataFlow/M02_DF_Compute.py
@@ -326,6 +326,11 @@ def _same(a: Any, b: Any) -> bool:
     return False
 
 
+def _exact(a: Any, b: Any) -> bool:
+    """표 찾기 같음 — 글끼리는 대소문자까지(옛 find · Rule lookup FIND) · 그 밖은 엑셀 「=」."""
+    return a == b if isinstance(a, str) and isinstance(b, str) else _same(a, b)
+
+
 def _compare(a: Any, op: str, b: Any) -> bool:
     if op in ("=", "≠"):
         return _same(a, b) == (op == "=")
@@ -371,7 +376,7 @@ def _lookup(rule: dict, block: Any, conds: dict) -> tuple[Any, str | None]:
         col, want = str(c.get("col")), _cond_of(conds, c.get("from") or {})
         if col in head:
             i = head.index(col)
-            tests.append(lambda row, i=i, want=want: row[i] is None or _same(row[i], want))
+            tests.append(lambda row, i=i, want=want: row[i] is None or _exact(row[i], want))
         elif col + dv.RANGE_LOW in head and col + dv.RANGE_HIGH in head:
             lo, hi, x = (
                 head.index(col + dv.RANGE_LOW),
diff --git a/M02_MasterTemplete/DataFlow/M02_DF_Rule.ts b/M02_MasterTemplete/DataFlow/M02_DF_Rule.ts
index df684c2d3..d5ee5b516 100644
--- a/M02_MasterTemplete/DataFlow/M02_DF_Rule.ts
+++ b/M02_MasterTemplete/DataFlow/M02_DF_Rule.ts
@@ -204,7 +204,13 @@ function lookup(
     const same = at(c.col);
     const low = at(`${c.col}·아래`);
     const high = at(`${c.col}·위`);
-    if (same) tests.push((r) => `OR(ISBLANK(${same}${r}),${same}${r}=${ref})`);
+    // 글끼리는 대소문자까지 같아야 맞음(옛 find · 「t_2」 ≠ 「T_2」) — FIND 는 대소문자를 가림
+    if (same)
+      tests.push(
+        (r) =>
+          `OR(ISBLANK(${same}${r}),IF(AND(ISTEXT(${same}${r}),ISTEXT(${ref})),` +
+          `AND(LEN(${same}${r})=LEN(${ref}),ISNUMBER(FIND(${ref},${same}${r}))),${same}${r}=${ref}))`,
+      );
     else if (low && high) {
       ups.push(high);
       tests.push(
diff --git a/resources/tester/test_m02_df_model.py b/resources/tester/test_m02_df_model.py
index b3dbefa41..ad50754b2 100644
--- a/resources/tester/test_m02_df_model.py
+++ b/resources/tester/test_m02_df_model.py
@@ -949,3 +949,22 @@ def test_화면_값_물음_조건_찾기_인력기계유가_검색어_틀_다른
     designs = {"기계": "0201-0020", "지역": "전국평균"}
     assert ["*", "기계", None, {"key": "GC000270", "designs": designs}, False] in qs
     assert server == {"노무비": 123}  # 서버가 셈한 다른 로직 출력이 있으면 그것
+
+
+def test_표_찾기_글은_대소문자까지_같아야() -> None:
+    from M02_MasterTemplete.DataFlow import M02_DF_Compute as cp
+
+    block = [["구분", "값"], ["T_2", 1], ["t_2", 3], ["e", 0.96], ["E", 0.45]]
+    rule = {
+        "kind": "lookup",
+        "conds": [{"col": "구분", "from": {"box": "v", "name": "g"}}],
+        "col": "값",
+    }
+    gs = ["t_2", "T_2", "E", "e", "x"]
+    got = _run(
+        RULE
+        + f"const block = {json.dumps(block)};\nconst rule = {json.dumps(rule, ensure_ascii=False)};\n"
+        f"out({json.dumps(gs)}.map(g => {{ const r = R.applyRule(rule, block, {{ g }}); return [r.value, r.why]; }}));"
+    )
+    assert got == [[3, None], [1, None], [0.45, None], [0.96, None], [None, "표에 없는 조건"]]
+    assert [list(cp._lookup(rule, block, {"g": g})) for g in gs] == got