diff --git a/tests/runtime/data/wasm/msgpack/filter_rust_mp.wasm b/tests/runtime/data/wasm/msgpack/filter_rust_mp.wasm
new file mode 100755
index 00000000000..f2f7487190a
Binary files /dev/null and b/tests/runtime/data/wasm/msgpack/filter_rust_mp.wasm differ
diff --git a/tests/runtime/filter_wasm.c b/tests/runtime/filter_wasm.c
index 4cc1afcb807..e0e68c371d8 100644
--- a/tests/runtime/filter_wasm.c
+++ b/tests/runtime/filter_wasm.c
@@ -458,11 +458,73 @@ void flb_test_drop_all_records(void)
 }
 
 
+void flb_test_append_kv_on_msgpack(void)
+{
+    int ret;
+    flb_ctx_t *ctx;
+    int in_ffd;
+    int out_ffd;
+    int filter_ffd;
+    char *output = NULL;
+    char *input = "[0, {\"key\":\"val\"}]";
+    char *result;
+    struct flb_lib_out_cb cb_data;
+
+    /* clear previous output */
+    clear_output();
+
+    /* Create context, flush every second (some checks omitted here) */
+    ctx = flb_create();
+    flb_service_set(ctx, "flush", FLUSH_INTERVAL, "grace", "1", NULL);
+
+    /* Prepare output callback context*/
+    cb_data.cb = callback_test;
+    cb_data.data = NULL;
+
+    /* Filter */
+    filter_ffd = flb_filter(ctx, (char *) "wasm", NULL);
+    TEST_CHECK(filter_ffd >= 0);
+    ret = flb_filter_set(ctx, filter_ffd,
+                         "Match", "*",
+                         "event_format", "msgpack",
+                         "wasm_path", DPATH_WASM "/msgpack/filter_rust_mp.wasm",
+                         "function_name", "rust_filter_mp",
+                         NULL);
+
+    /* Input */
+    in_ffd = flb_input(ctx, (char *) "lib", NULL);
+    flb_input_set(ctx, in_ffd, "tag", "test.wasm.mp", NULL);
+    TEST_CHECK(in_ffd >= 0);
+
+    /* Lib output */
+    out_ffd = flb_output(ctx, (char *) "lib", (void *)&cb_data);
+    TEST_CHECK(out_ffd >= 0);
+    flb_output_set(ctx, out_ffd,
+                   "match", "test.wasm.mp",
+                   "format", "json",
+                   NULL);
+
+    ret = flb_start(ctx);
+    TEST_CHECK(ret==0);
+
+    flb_lib_push(ctx, in_ffd, input, strlen(input));
+    wait_with_timeout(2000, &output);
+    result = strstr(output, "\"platform\":\"wasm\"");
+    TEST_CHECK(result != NULL);
+
+    /* clean up */
+    flb_lib_free(output);
+
+    flb_stop(ctx);
+    flb_destroy(ctx);
+}
+
 TEST_LIST = {
     {"hello_world", flb_test_helloworld},
     {"append_tag", flb_test_append_tag},
     {"numeric_records", flb_test_numerics_records},
     {"array_contains_null", flb_test_array_contains_null},
     {"drop_all_records", flb_test_drop_all_records},
+    {"append_kv_on_msgpack_format", flb_test_append_kv_on_msgpack},
     {NULL, NULL}
 };
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new file mode 100644
index 00000000000..63438ee4541
--- /dev/null
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diff --git a/tests/runtime/wasm/rust/filter_rust_mp/Cargo.toml b/tests/runtime/wasm/rust/filter_rust_mp/Cargo.toml
new file mode 100644
index 00000000000..baec6f26006
--- /dev/null
+++ b/tests/runtime/wasm/rust/filter_rust_mp/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "filter_rust_mp"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+serde = { version = "*", features = ["derive", "std"] }
+serde_json = "1.0"
+serde_bytes = "0.11"
+serde_derive = "1.0"
+rmp-serde = "1.1"
+rmpv = "1.0"
+rmp = "0.8"
+chrono = { version = "0.4", default-features = false, features = ["clock", "std", "oldtime"] }
+libc = "0.2"
diff --git a/tests/runtime/wasm/rust/filter_rust_mp/README.md b/tests/runtime/wasm/rust/filter_rust_mp/README.md
new file mode 100644
index 00000000000..54edfc944f7
--- /dev/null
+++ b/tests/runtime/wasm/rust/filter_rust_mp/README.md
@@ -0,0 +1,39 @@
+# Fluent Bit / filter_rust_mp
+
+This source tree provides an test program of WASM program which uses msgpack format written in Rust.
+
+## Prerequisites
+
+* Rust
+  * rustc 1.75.0 (82e1608df 2023-12-21)) or later
+* [rustup](https://rustup.rs/) (For preparing rust compiler and toolchains)
+
+## How to build
+
+Add `wasm32-unknown-unknown` target for Rust toolchain:
+
+```console
+$ rustup target add wasm32-unknown-unknown
+```
+
+Then, execute _cargo build_ as follows:
+
+```console
+$ cargo build --target wasm32-unknown-unknown --release
+```
+
+Finally, `*.wasm` file will be created:
+
+```console
+$ ls target/wasm32-unknown-unknown/release/*.wasm
+target/wasm32-unknown-unknown/release/filter_rust_mp.wasm
+```
+
+## How to put test data of WASM filter
+
+Testcase of Wasm filters, which is written in Rust, on fluent-bit is put under `tests/runtime/data/wasm/msgpack` directory.
+
+```console
+$ cp target/wasm32-unknown-unknown/release/filter_rust_mp.wasm \
+  /top/path/of/fluent-bit/tests/runtime/data/wasm/msgpack
+```
diff --git a/tests/runtime/wasm/rust/filter_rust_mp/src/lib.rs b/tests/runtime/wasm/rust/filter_rust_mp/src/lib.rs
new file mode 100644
index 00000000000..f0ee445b852
--- /dev/null
+++ b/tests/runtime/wasm/rust/filter_rust_mp/src/lib.rs
@@ -0,0 +1,59 @@
+// Import pure and fast msgpack library written in Rust
+use rmp_serde::Serializer;
+use serde::Serialize;
+use rmpv::Value;
+
+// Import chrono library to handle time related operation conveniently
+use std::collections::BTreeMap;
+use std::io::Cursor;
+use std::io::Write;
+use std::os::raw::c_char;
+use std::slice;
+
+#[inline]
+fn value_to_string(val: &Value) -> String {
+    if val.is_str() {
+        let into = match val {
+            Value::String(s) => s.clone().into_str(),
+            _ => unreachable!()
+        };
+        match into {
+            Some(i) => i.to_string(),
+            None => "".to_string(),
+        }
+    } else {
+        format!("{}", val)
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn rust_filter_mp(tag: *const c_char, tag_len: u32, _time_sec: u32, _time_nsec: u32, record: *const c_char, record_len: u32) -> *const u8 {
+    let slice_tag: &[u8] = unsafe { slice::from_raw_parts(tag as *const u8, tag_len as usize) };
+    let mut vt: Vec<u8> = Vec::new();
+    vt.write(slice_tag).expect("Unable to write");
+    let slice_record: &[u8] =
+        unsafe { slice::from_raw_parts(record as *const u8, record_len as usize) };
+    let de = rmpv::decode::read_value(&mut Cursor::new(slice_record)).unwrap();
+
+    let mut map = BTreeMap::new();
+
+    let binding = de.as_map().unwrap();
+    let size = binding.len();
+
+    // Create BTreeMap to handle collection operations easily
+    for i in 0..size {
+        let (k, v) = &binding[i];
+        let key = value_to_string(k);
+        let value = value_to_string(v);
+        map.insert(key, value);
+    }
+
+    map.insert("platform".to_string(), "wasm".to_string());
+
+    let mut buf = Vec::new();
+    let val = map;
+
+    let mut se = Serializer::new(&mut buf).with_struct_map();
+    val.serialize(&mut se).unwrap();
+    buf.as_ptr()
+}