diff --git a/patterns.go b/patterns.go
index 1cf9726..e55451c 100644
--- a/patterns.go
+++ b/patterns.go
@@ -48,6 +48,7 @@ const (
 	hasUpperCase      string = ".*[[:upper:]]"
 	hasWhitespace     string = ".*[[:space:]]"
 	hasWhitespaceOnly string = "^[[:space:]]+$"
+	IMEI              string = "^[0-9a-f]{14}$|^\\d{15}$|^\\d{18}$"
 )
 
 // Used by IsFilePath func
@@ -100,4 +101,5 @@ var (
 	rxHasUpperCase      = regexp.MustCompile(hasUpperCase)
 	rxHasWhitespace     = regexp.MustCompile(hasWhitespace)
 	rxHasWhitespaceOnly = regexp.MustCompile(hasWhitespaceOnly)
+	rxIMEI              = regexp.MustCompile(IMEI)
 )
diff --git a/types.go b/types.go
index f42a346..b57b666 100644
--- a/types.go
+++ b/types.go
@@ -162,6 +162,7 @@ var TagMap = map[string]Validator{
 	"ISO3166Alpha2":      IsISO3166Alpha2,
 	"ISO3166Alpha3":      IsISO3166Alpha3,
 	"ISO4217":            IsISO4217,
+	"IMEI":               IsIMEI,
 }
 
 // ISO3166Entry stores country codes
diff --git a/validator.go b/validator.go
index 48f2f86..298f992 100644
--- a/validator.go
+++ b/validator.go
@@ -737,6 +737,11 @@ func IsLongitude(str string) bool {
 	return rxLongitude.MatchString(str)
 }
 
+// IsIMEI check if a string is valid IMEI
+func IsIMEI(str string) bool {
+	return rxIMEI.MatchString(str)
+}
+
 // IsRsaPublicKey check if a string is valid public key with provided length
 func IsRsaPublicKey(str string, keylen int) bool {
 	bb := bytes.NewBufferString(str)
diff --git a/validator_test.go b/validator_test.go
index 4fef8ab..631dff0 100644
--- a/validator_test.go
+++ b/validator_test.go
@@ -4246,3 +4246,21 @@ func TestIsType(t *testing.T) {
 		}
 	}
 }
+
+func TestIsIMEI(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"990000862471854", true},
+		{"351756051523999", true},
+		{"9900008624718541", false},
+		{"1", false},
+	}
+	for _, test := range tests {
+		actual := IsIMEI(test.param)
+		if actual != test.expected {
+			t.Errorf("Expected IsIMEI(%q) to be %v, got %v", test.param, test.expected, actual)
+		}
+	}
+}