diff --git a/builder/tencentcloud/cvm/run_config.go b/builder/tencentcloud/cvm/run_config.go
index e4a45e11..66484d61 100644
--- a/builder/tencentcloud/cvm/run_config.go
+++ b/builder/tencentcloud/cvm/run_config.go
@@ -117,8 +117,9 @@ func (cf *TencentCloudRunConfig) Prepare(ctx *interpolate.Context) []error {
 	packerId := fmt.Sprintf("packer_%s", uuid.TimeOrderedUUID()[:8])
 	if cf.Comm.SSHKeyPairName == "" && cf.Comm.SSHTemporaryKeyPairName == "" &&
 		cf.Comm.SSHPrivateKeyFile == "" && cf.Comm.SSHPassword == "" && cf.Comm.WinRMPassword == "" {
-		//tencentcloud support key pair name length max to 25
-		cf.Comm.SSHTemporaryKeyPairName = packerId
+		// Key pair names must be unique so we can't use packerId here, instead we set a
+		// dummy value now and a unique name later
+		cf.Comm.SSHTemporaryKeyPairName = "dummy value"
 	}
 
 	errs := cf.Comm.Prepare(ctx)
diff --git a/builder/tencentcloud/cvm/step_config_key_pair.go b/builder/tencentcloud/cvm/step_config_key_pair.go
index 4a97cb1e..b8b8cab4 100644
--- a/builder/tencentcloud/cvm/step_config_key_pair.go
+++ b/builder/tencentcloud/cvm/step_config_key_pair.go
@@ -12,6 +12,7 @@ import (
 
 	"github.com/hashicorp/packer-plugin-sdk/communicator"
 	"github.com/hashicorp/packer-plugin-sdk/multistep"
+	"github.com/hashicorp/packer-plugin-sdk/uuid"
 	cvm "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cvm/v20170312"
 )
 
@@ -22,6 +23,12 @@ type stepConfigKeyPair struct {
 	keyID        string
 }
 
+func CreateKeyPairName() string {
+	uuid := uuid.TimeOrderedUUID()
+
+	return fmt.Sprintf("packer_%s_%s", uuid[:8], uuid[9:13])
+}
+
 func (s *stepConfigKeyPair) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
 	client := state.Get("cvm_client").(*cvm.Client)
 
@@ -51,6 +58,8 @@ func (s *stepConfigKeyPair) Run(ctx context.Context, state multistep.StateBag) m
 		return multistep.ActionContinue
 	}
 
+	// Set a unique value for each key pair name
+	s.Comm.SSHTemporaryKeyPairName = CreateKeyPairName()
 	Say(state, s.Comm.SSHTemporaryKeyPairName, "Trying to create a new keypair")
 
 	req := cvm.NewCreateKeyPairRequest()