diff --git a/TEEKit/include/tee/tee_log.h b/TEEKit/include/tee/tee_log.h
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+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License"),
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup TeeTrusted
+ * @{
+ *
+ * @brief TEE(Trusted Excution Environment) API.
+ * Provides security capability APIs such as trusted storage, encryption and decryption,
+ * and trusted time for trusted application development.
+ *
+ * @since 20
+ */
+
+/**
+ * @file tee_log.h
+ *
+ * @brief Provides TEE log APIs.
+ *
+ * Reference of TEE log APIs and internal definitions.
+ *
+ * @library NA
+ * @kit TEEKit
+ * @syscap SystemCapability.Tee.TeeClient
+ * @since 20
+ * @version 1.0
+ */
+
+#ifndef __TEE_LOG_H
+#define __TEE_LOG_H
+
+#include "tee_defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Defines the ERROR level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_ERROR   0
+
+/**
+ * @brief Defines the WARNING level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_WARNING 1
+
+/**
+ * @brief Defines the INFO level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_INFO    2
+
+/**
+ * @brief Defines the DEBUG level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_DEBUG   3
+
+/**
+ * @brief Defines the VERBO level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_VERBO   4
+
+/**
+ * @brief Defines the default level of the TA log.
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL_DEFAULT  TA_LOG_LEVEL_INFO
+
+#ifndef TA_LOG_LEVEL
+/**
+ * @brief Defines the default level of the TA log.
+ * {@code TA_LOG_LEVEL} can be redefined by TA developers
+ *
+ * @since 20
+ */
+#define TA_LOG_LEVEL TA_LOG_LEVEL_DEFAULT
+
+#endif
+
+/**
+ * @brief Defines the tag of the VERBO level TA log.
+ *
+ * @since 20
+ */
+#define TAG_VERB  "[verb]"
+
+/**
+ * @brief Defines the tag of the DEBUG level TA log.
+ *
+ * @since 20
+ */
+#define TAG_DEBUG "[debug]"
+
+/**
+ * @brief Defines the tag of the INFO level TA log.
+ *
+ * @since 20
+ */
+#define TAG_INFO  "[info]"
+
+/**
+ * @brief Defines the tag of the WARNING level TA log.
+ *
+ * @since 20
+ */
+#define TAG_WARN  "[warn]"
+
+/**
+ * @brief Defines the tag of the ERROR level TA log.
+ *
+ * @since 20
+ */
+#define TAG_ERROR "[error]"
+
+/**
+ * @brief Enumerates the levels of the log.
+ *
+ * @since 20
+ */
+typedef enum {
+    /** Error level log. */
+    LOG_LEVEL_ERROR = 0,
+    /** Warning level log. */
+    LOG_LEVEL_WARN  = 1,
+    /** Information level log. */
+    LOG_LEVEL_INFO  = 2,
+    /** Debug level log. */
+    LOG_LEVEL_DEBUG = 3,
+    /** Verbose level log. */
+    LOG_LEVEL_VERBO = 4,
+    /** On level log. */
+    LOG_LEVEL_ON    = 5,
+} LOG_LEVEL;
+
+/**
+ * @brief Provides to print UART logs.
+ *
+ * @param fmt [IN] The log information.
+ *
+ * @since 20
+ */
+void uart_cprintf(const char *fmt, ...);
+
+/**
+ * @brief Provides to print UART logs.
+ *
+ * @param fmt [IN] The log information.
+ *
+ * @since 20
+ */
+void uart_printf_func(const char *fmt, ...);
+
+/**
+ * @brief Provides to print TEE logs.
+ *
+ * @param log_level [IN] The level of the log.
+ * @param fmt [IN] The log information.
+ *
+ * @since 20
+ */
+void tee_print(LOG_LEVEL log_level, const char *fmt, ...);
+
+/**
+ * @brief Provides to print TEE driver logs.
+ *
+ * @param log_level [IN] The level of the log.
+ * @param log_tag [IN] The tag of the log.
+ * @param fmt [IN] The log information.
+ *
+ * @since 20
+ */
+void tee_print_driver(LOG_LEVEL log_level, const char *log_tag, const char *fmt, ...);
+
+/**
+ * @brief Defines the debug prefix string.
+ *
+ * @since 20
+ */
+extern const char *g_debug_prefix;
+
+/**
+ * @brief Defines an enum for system events.
+ *
+ * @since 20
+ */
+typedef enum {
+    /** Fault event. */
+    FAULT = 1,
+    /** Statistics event. */
+    STATISTIC  = 2,
+    /** Security event. */
+    SECURITY  = 3,
+    /** Behavior event. */
+    BEHAVIOR = 4,
+} HISYSEVENT_TYPE;
+
+#if (TA_LOG_LEVEL >= TA_LOG_LEVEL_VERBO)
+
+/**
+ * @brief Reports DFX messages to HiViewOcean.
+ *
+ * @param domain Domain name of a message.
+ * @param event Event name of a message.
+ * @param event_type Event type of a message.
+ * @param fmt Format of a logged message.
+ *
+ * @since 20
+ */
+void tee_report(const char *domain, const char *event, HISYSEVENT_TYPE event_type, const char *fmt, ...);
+#ifdef DRIVER_LOG_TAG
+/**
+ * @brief Defines the API to print TEE log at the VERBO level.
+ *
+ * @since 20
+ */
+#define tlogv(fmt, args...) \
+    tee_print_driver(LOG_LEVEL_VERBO, DRIVER_LOG_TAG, "%s %d:" fmt "", TAG_VERB, __LINE__, ##args)
+
+#else
+/**
+ * @brief Defines the API to print TEE log at the VERBO level.
+ *
+ * @since 20
+ */
+#define tlogv(fmt, args...) tee_print(LOG_LEVEL_VERBO, "%s %d:" fmt "", TAG_VERB, __LINE__, ##args)
+
+#endif /* DRIVER_LOG_TAG */
+#else
+/**
+ * @brief Defines the API to print TEE log at the VERBO level.
+ *
+ * @since 20
+ */
+#define tlogv(fmt, args...) \
+    do {                    \
+    } while (0)
+
+#endif /* TA_LOG_LEVEL >= TA_LOG_LEVEL_VERBO */
+
+#if (TA_LOG_LEVEL >= TA_LOG_LEVEL_DEBUG)
+#ifdef DRIVER_LOG_TAG
+/**
+ * @brief Defines the API to print TEE log at the DEBUG level.
+ *
+ * @since 20
+ */
+#define tlogd(fmt, args...) \
+    tee_print_driver(LOG_LEVEL_DEBUG, DRIVER_LOG_TAG, "%s %d:" fmt "", TAG_DEBUG, __LINE__, ##args)
+
+#else
+/**
+ * @brief Defines the API to print TEE log at the DEBUG level.
+ *
+ * @since 20
+ */
+#define tlogd(fmt, args...) tee_print(LOG_LEVEL_DEBUG, "%s %d:" fmt "", TAG_DEBUG, __LINE__, ##args)
+
+#endif /* DRIVER_LOG_TAG */
+#else
+/**
+ * @brief Defines the API to print TEE log at the DEBUG level.
+ *
+ * @since 20
+ */
+#define tlogd(fmt, args...) \
+    do {                    \
+    } while (0)
+
+#endif /* TA_LOG_LEVEL >= TA_LOG_LEVEL_DEBUG */
+
+#if (TA_LOG_LEVEL >= TA_LOG_LEVEL_INFO)
+#ifdef DRIVER_LOG_TAG
+/**
+ * @brief Defines the API to print TEE log at the INFO level.
+ *
+ * @since 20
+ */
+#define tlogi(fmt, args...) \
+    tee_print_driver(LOG_LEVEL_INFO, DRIVER_LOG_TAG, "%s %d:" fmt "", TAG_INFO, __LINE__, ##args)
+
+#else
+/**
+ * @brief Defines the API to print TEE log at the INFO level.
+ *
+ * @since 20
+ */
+#define tlogi(fmt, args...) tee_print(LOG_LEVEL_INFO, "%s %d:" fmt "", TAG_INFO, __LINE__, ##args)
+
+#endif /* DRIVER_LOG_TAG */
+#else
+/**
+ * @brief Defines the API to print TEE log at the INFO level.
+ *
+ * @since 20
+ */
+#define tlogi(fmt, args...) \
+    do {                    \
+    } while (0)
+
+#endif /* TA_LOG_LEVEL >= TA_LOG_LEVEL_INFO */
+
+#if (TA_LOG_LEVEL >= TA_LOG_LEVEL_WARNING)
+#ifdef DRIVER_LOG_TAG
+/**
+ * @brief Defines the API to print TEE log at the WARNING level.
+ *
+ * @since 20
+ */
+#define tlogw(fmt, args...) \
+    tee_print_driver(LOG_LEVEL_WARN, DRIVER_LOG_TAG, "%s %d:" fmt "", TAG_WARN, __LINE__, ##args)
+
+#else
+/**
+ * @brief Defines the API to print TEE log at the WARNING level.
+ *
+ * @since 20
+ */
+#define tlogw(fmt, args...) tee_print(LOG_LEVEL_WARN, "%s %d:" fmt "", TAG_WARN, __LINE__, ##args)
+
+#endif /* DRIVER_LOG_TAG */
+#else
+/**
+ * @brief Defines the API to print TEE log at the WARNING level.
+ *
+ * @since 20
+ */
+#define tlogw(fmt, args...) \
+    do {                    \
+    } while (0)
+
+#endif /* TA_LOG_LEVEL >= TA_LOG_LEVEL_WARNING */
+
+#if (TA_LOG_LEVEL >= TA_LOG_LEVEL_ERROR) /* Always meet this condition. */
+#ifndef TLOGE_NO_TIMESTAMP
+#ifdef DRIVER_LOG_TAG
+/**
+ * @brief Defines the API to print TEE log at the ERROR level.
+ *
+ * @since 20
+ */
+#define tloge(fmt, args...) \
+    tee_print_driver(LOG_LEVEL_ERROR, DRIVER_LOG_TAG, "%s %d:" fmt " ", TAG_ERROR, __LINE__, ##args)
+
+#else
+/**
+ * @brief Defines the API to print TEE log at the ERROR level.
+ *
+ * @since 20
+ */
+#define tloge(fmt, args...) tee_print(LOG_LEVEL_ERROR, "%s %d:" fmt " ", TAG_ERROR, __LINE__, ##args)
+
+#endif /* DRIVER_LOG_TAG */
+#else
+/**
+ * @brief Defines the API to print TEE log at the ERROR level.
+ *
+ * @since 20
+ */
+#define tloge(fmt, args...) printf("[%s] %s %d:" fmt " ", g_debug_prefix, TAG_ERROR, __LINE__, ##args)
+
+#endif /* TLOGE_NO_TIMESTAMP */
+#else
+/**
+ * @brief Defines the API to print TEE log at the ERROR level.
+ *
+ * @since 20
+ */
+#define tloge(fmt, args...) \
+    do {                    \
+    } while (0)
+
+#endif /* TA_LOG_LEVEL >= TA_LOG_LEVEL_ERROR */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TEE_LOG_H */
+/** @} */
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