diff --git a/t/thread.c b/t/thread.c
new file mode 100644
index 0000000..1590d4c
--- /dev/null
+++ b/t/thread.c
@@ -0,0 +1,143 @@
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include "mln_framework.h"
+#include "mln_log.h"
+#include "mln_thread.h"
+
+mln_string_t me_framework_mode = mln_string("multithread");
+mln_conf_item_t me_framework_conf = {CONF_STR, .val.s=&me_framework_mode};
+mln_conf_item_t me_workerproc_conf = {CONF_INT, .val.i=1};
+mln_string_t me_thread_hello_str = mln_string("hello");
+mln_conf_item_t me_thread_hello = {CONF_STR, .val.s=&me_thread_hello_str};
+mln_string_t me_thread_haha_str = mln_string("haha");
+mln_conf_item_t me_thread_haha = {CONF_STR, .val.s=&me_thread_haha_str};
+
+static int global_init(void)
+{
+    mln_conf_t *cf;
+    mln_conf_domain_t *cd;
+    mln_conf_cmd_t *cc;
+
+    cf = mln_conf();
+    cd = cf->search(cf, "main");
+    cc = cd->search(cd, "framework");
+    if (cc == NULL) {
+        assert((cc = cd->insert(cd, "framework")) != NULL);
+    }
+    assert(cc->update(cc, &me_framework_conf, 1) == 0);
+
+    cc = cd->search(cd, "worker_proc");
+    if (cc == NULL) {
+        assert((cc = cd->insert(cd, "worker_proc")) != NULL);
+    }
+    assert(cc->update(cc, &me_workerproc_conf, 1) == 0);
+
+    cd = cf->search(cf, "thread_exec");
+    if (cd == NULL) {
+        cd = cf->insert(cf, "thread_exec");
+    }
+    assert(cd != NULL);
+
+    assert((cc = cd->insert(cd, "default")) != NULL);
+    assert(cc->update(cc, &me_thread_hello, 1) == 0);
+
+    assert((cc = cd->insert(cd, "default")) != NULL);
+    assert(cc->update(cc, &me_thread_haha, 1) == 0);
+
+    return 0;
+}
+
+static int haha(int argc, char **argv)
+{
+    int fd = atoi(argv[argc-1]);
+    mln_thread_msg_t msg;
+    int nfds;
+    fd_set rdset;
+
+    FD_ZERO(&rdset);
+    FD_SET(fd, &rdset);
+    nfds = select(fd+1, &rdset, NULL, NULL, NULL);
+    if (nfds < 0) {
+        mln_log(error, "select error. %s\n", strerror(errno));
+        return -1;
+    }
+    memset(&msg, 0, sizeof(msg));
+    int n = recv(fd, &msg, sizeof(msg), 0);
+    if (n != sizeof(msg)) {
+        mln_log(debug, "recv error. n=%d. %s\n", n, strerror(errno));
+        return -1;
+    }
+    mln_log(debug, "!!!src:%S auto:%l char:%c\n", msg.src, msg.sauto, msg.c);
+    mln_thread_clear_msg(&msg);
+
+    return 0;
+}
+
+static void hello_cleanup(void *data)
+{
+    mln_log(debug, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
+}
+
+static int hello(int argc, char **argv)
+{
+    mln_thread_cleanup_set(hello_cleanup, NULL);
+    int i;
+    for (i = 0; i < 1; ++i)  {
+        int fd = atoi(argv[argc-1]);
+        mln_thread_msg_t msg;
+        memset(&msg, 0, sizeof(msg));
+        msg.dest = mln_string_new("haha");
+        assert(msg.dest);
+        msg.sauto = 9736;
+        msg.c = 'N';
+        msg.type = ITC_REQUEST;
+        msg.need_clear = 1;
+        int n = send(fd, &msg, sizeof(msg), 0);
+        if (n != sizeof(msg)) {
+            mln_log(debug, "send error. n=%d. %s\n", n, strerror(errno));
+            mln_string_free(msg.dest);
+            return -1;
+        }
+    }
+    usleep(1000000);
+    exit(0);
+    return 0;
+}
+
+static void master_handler(mln_event_t *ev)
+{
+    usleep(100000);
+    exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+    printf("NOTE: This test has memory leak because we don't release memory of log, conf, multiprocess-related and multithread-related stuffs.\n");
+    printf("In fact, `mln_framework_init` should be the last function called in `main`, so we don't need to release anything.\n");
+
+    mln_thread_module_t modules[] = {
+      {"haha", haha},
+      {"hello", hello},
+    };
+
+    struct mln_framework_attr cattr;
+
+    cattr.argc = argc;
+    cattr.argv = argv;
+    cattr.global_init = global_init;
+    cattr.main_thread = NULL;
+    cattr.worker_process = NULL;
+    cattr.master_process = master_handler;
+
+    mln_thread_module_set(modules, 2);
+
+    if (mln_framework_init(&cattr) < 0) {
+       fprintf(stderr, "Melon init failed.\n");
+       return -1;
+    }
+
+    return 0;
+}
+