diff --git a/modules/util/truncate.go b/modules/util/truncate.go
index f2edbdc673..7207a89177 100644
--- a/modules/util/truncate.go
+++ b/modules/util/truncate.go
@@ -54,3 +54,12 @@ func SplitTrimSpace(input, sep string) []string {
 
 	return stringList
 }
+
+// TruncateRunes returns a truncated string with given rune limit,
+// it returns input string if its rune length doesn't exceed the limit.
+func TruncateRunes(str string, limit int) string {
+	if utf8.RuneCountInString(str) < limit {
+		return str
+	}
+	return string([]rune(str)[:limit])
+}
diff --git a/modules/util/truncate_test.go b/modules/util/truncate_test.go
index dfe1230fd4..8187b13eb2 100644
--- a/modules/util/truncate_test.go
+++ b/modules/util/truncate_test.go
@@ -44,3 +44,18 @@ func TestSplitString(t *testing.T) {
 	}
 	test(tc, SplitStringAtByteN)
 }
+
+func TestTruncateRunes(t *testing.T) {
+	assert.Empty(t, TruncateRunes("", 0))
+	assert.Empty(t, TruncateRunes("", 1))
+
+	assert.Empty(t, TruncateRunes("ab", 0))
+	assert.Equal(t, "a", TruncateRunes("ab", 1))
+	assert.Equal(t, "ab", TruncateRunes("ab", 2))
+	assert.Equal(t, "ab", TruncateRunes("ab", 3))
+
+	assert.Empty(t, TruncateRunes("测试", 0))
+	assert.Equal(t, "测", TruncateRunes("测试", 1))
+	assert.Equal(t, "测试", TruncateRunes("测试", 2))
+	assert.Equal(t, "测试", TruncateRunes("测试", 3))
+}
diff --git a/services/webhook/discord.go b/services/webhook/discord.go
index 3970a2552d..f60903c276 100644
--- a/services/webhook/discord.go
+++ b/services/webhook/discord.go
@@ -151,6 +151,18 @@ var (
 	redColor         = color("ff3232")
 )
 
+// https://discord.com/developers/docs/resources/message#embed-object-embed-limits
+// Discord has some limits in place for the embeds.
+// According to some tests, there is no consistent limit for different character sets.
+// For example: 4096 ASCII letters are allowed, but only 2490 emoji characters are allowed.
+// To keep it simple, we currently truncate at 2000.
+const discordDescriptionCharactersLimit = 2000
+
+type discordConvertor struct {
+	Username  string
+	AvatarURL string
+}
+
 // Create implements PayloadConvertor Create method
 func (d discordConvertor) Create(p *api.CreatePayload) (DiscordPayload, error) {
 	// created tag/branch
@@ -312,11 +324,6 @@ func (d discordConvertor) Package(p *api.PackagePayload) (DiscordPayload, error)
 	return d.createPayload(p.Sender, text, "", p.Package.HTMLURL, color), nil
 }
 
-type discordConvertor struct {
-	Username  string
-	AvatarURL string
-}
-
 var _ shared.PayloadConvertor[DiscordPayload] = discordConvertor{}
 
 func (discordHandler) NewRequest(ctx context.Context, w *webhook_model.Webhook, t *webhook_model.HookTask) (*http.Request, []byte, error) {
@@ -357,7 +364,7 @@ func (d discordConvertor) createPayload(s *api.User, title, text, url string, co
 		Embeds: []DiscordEmbed{
 			{
 				Title:       title,
-				Description: text,
+				Description: util.TruncateRunes(text, discordDescriptionCharactersLimit),
 				URL:         url,
 				Color:       color,
 				Author: DiscordEmbedAuthor{
diff --git a/services/webhook/discord_test.go b/services/webhook/discord_test.go
index ce3aaa10cf..b04be30bc6 100644
--- a/services/webhook/discord_test.go
+++ b/services/webhook/discord_test.go
@@ -175,7 +175,7 @@ func TestDiscordPayload(t *testing.T) {
 		require.NoError(t, err)
 
 		assert.Len(t, pl.Embeds, 1)
-		assert.Len(t, pl.Embeds[0].Description, 4096)
+		assert.Len(t, pl.Embeds[0].Description, 2000)
 	})
 
 	t.Run("IssueComment", func(t *testing.T) {