diff --git a/interfaces/innerkits/fs_manager/libfs_hvb/fs_hvb.c b/interfaces/innerkits/fs_manager/libfs_hvb/fs_hvb.c
index 4ec40a2070e5232c17217cd3c8b0a1425e169b16..6fd4be4ba174879998f0110fd587b701fbb67bd7 100755
--- a/interfaces/innerkits/fs_manager/libfs_hvb/fs_hvb.c
+++ b/interfaces/innerkits/fs_manager/libfs_hvb/fs_hvb.c
@@ -321,6 +321,19 @@ static int FsHvbGetCert(struct hvb_cert *cert, const char *devName, struct hvb_v
     struct hvb_cert_data *p = vd->certs;
     struct hvb_cert_data *end = p + vd->num_loaded_certs;
 
+    int bootSlots = GetBootSlots();
+    if (bootSlots > 1) {
+        if (devNameLen <= FS_HVB_AB_SUFFIX_LEN) {
+            BEGET_LOGE("error, devname (%s) is invlaid, devnamelen = %u", devName, devNameLen);
+            return -1;
+        }
+        if (memcmp(devName + devNameLen - FS_HVB_AB_SUFFIX_LEN, "_a", FS_HVB_AB_SUFFIX_LEN) == 0 ||
+            memcmp(devName + devNameLen - FS_HVB_AB_SUFFIX_LEN, "_b", FS_HVB_AB_SUFFIX_LEN) == 0) {
+            BEGET_LOGI("remove ab suffix in %s to match in hvb certs", devName);
+            devNameLen -= FS_HVB_AB_SUFFIX_LEN;
+        }
+    }
+
     for (; p < end; p++) {
         if (devNameLen != strlen(p->partition_name)) {
             continue;
diff --git a/interfaces/innerkits/fs_manager/libfs_hvb/hvb_ops.c b/interfaces/innerkits/fs_manager/libfs_hvb/hvb_ops.c
index 9673d8784b529b26050a3f295df68e3c83c43e7e..2c71765b5d7c44633ff6d753b4782a34491a8e86 100755
--- a/interfaces/innerkits/fs_manager/libfs_hvb/hvb_ops.c
+++ b/interfaces/innerkits/fs_manager/libfs_hvb/hvb_ops.c
@@ -23,6 +23,7 @@
 #include "fs_dm.h"
 #include "fs_hvb.h"
 #include "securec.h"
+#include "init_utils.h"
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -122,6 +123,57 @@ static char *GetExtHvbVerifiedPath(size_t index)
     return tmpPath;
 }
 
+static char *HvbGetABPartitionPath(char *path, const size_t pathLen, const char *partition)
+{
+    /* Check if there are multiple partitions */
+    int bootSlots = GetBootSlots();
+    size_t abPathLen = pathLen + FS_HVB_AB_SUFFIX_LEN;
+    if (bootSlots <= 1) {
+        BEGET_LOGE("invalid bootSlots: %d", bootSlots);
+        goto err;
+    }
+ 
+    /* Confirm partition information */
+    /* slot = 1 is partition a */
+    /* slot = 2 is partition b */
+    int slot = GetCurrentSlot();
+    if (slot <= 0 || slot > MAX_SLOT) {
+        BEGET_LOGW("slot value %d is invalid, set default value", slot);
+        slot = 1;
+    }
+    
+    if (path != NULL) {
+        free(path);
+    }
+    path = calloc(1, abPathLen + 1);
+    if (path == NULL) {
+        BEGET_LOGE("error, calloc fail");
+        goto err;
+    }
+    
+    /* Concatenate partition names */
+    int rc = snprintf_s(path, abPathLen + 1, abPathLen, "%s%s_%c",
+        PARTITION_PATH_PREFIX, partition, 'a' + slot - 1);
+    if (rc < 0) {
+        BEGET_LOGE("error, snprintf_s fail, ret = %d", rc);
+        goto err;
+    }
+    if (access(path, F_OK) != 0) {
+        BEGET_LOGE("still can not access %s, abort verify", path);
+        goto err;
+    }
+    
+    BEGET_LOGE("HvbGetABPartitionPath succ; Setting current slot to:%c", 'a' + slot - 1);
+    return path;
+ 
+err:
+    if (path != NULL) {
+        free(path);
+    }
+ 
+    return NULL;
+}
+
 static char *HvbGetPartitionPath(const char *partition)
 {
     int rc;
@@ -150,6 +202,11 @@ static char *HvbGetPartitionPath(const char *partition)
         free(path);
         return NULL;
     }
+
+    if (access(path, F_OK) != 0) {
+        BEGET_LOGW("can not access %s, try to adapt into ab partition", path);
+        return HvbGetABPartitionPath(path, pathLen, partition);
+    }
     return path;
 }
 
diff --git a/interfaces/innerkits/fs_manager/libfs_hvb/include/fs_hvb.h b/interfaces/innerkits/fs_manager/libfs_hvb/include/fs_hvb.h
index 3aec80d214d7b0f38346dba6017ef926af0cc4e1..363448e8fee2ed8514db558dbe03bde64f3a3818 100755
--- a/interfaces/innerkits/fs_manager/libfs_hvb/include/fs_hvb.h
+++ b/interfaces/innerkits/fs_manager/libfs_hvb/include/fs_hvb.h
@@ -46,7 +46,8 @@ extern "C" {
 #define SZ_2KB (2 * SZ_1KB)
 #define SZ_4KB (4 * SZ_1KB)
 #define FS_HVB_MAX_PATH_LEN 128
- 
+#define FS_HVB_AB_SUFFIX_LEN 2
+
 typedef struct {
     uint32_t magicNumber;
     uint16_t exthdrSize;
diff --git a/test/unittest/BUILD.gn b/test/unittest/BUILD.gn
index 300163d87e07cf950850202e4fea093e10b7de4c..443fff272665b8a4625ed52f606396def593adb3 100755
--- a/test/unittest/BUILD.gn
+++ b/test/unittest/BUILD.gn
@@ -503,6 +503,8 @@ ohos_unittest("init_dmverify_unittest") {
 ohos_unittest("init_fshvb_unittest") {
   module_out_path = "init/init"
   sources = [
+    "//base/startup/init/interfaces/innerkits/fs_manager/fstab.c",
+    "//base/startup/init/interfaces/innerkits/fs_manager/fstab_mount.c",
     "//base/startup/init/interfaces/innerkits/fs_manager/libfs_hvb/fs_hvb.c",
     "//base/startup/init/interfaces/innerkits/fs_manager/libfs_hvb/hvb_ops.c",
     "//base/startup/init/services/log/init_commlog.c",
@@ -521,6 +523,8 @@ ohos_unittest("init_fshvb_unittest") {
     "//base/startup/init/interfaces/innerkits/fs_manager/libfs_hvb/include",
     "//base/startup/hvb/libhvb/include",
     "//base/startup/init/interfaces/innerkits/fs_manager/libfs_dm/include",
+    "//base/startup/init/interfaces/innerkits/fs_manager/switch_root/include",
+    "//base/startup/init/interfaces/innerkits/init_module_engine/include",
     "//base/startup/init/interfaces/innerkits/include/fs_manager",
     "//base/startup/init/interfaces/innerkits/include",
     "//base/startup/init/services/log",
@@ -534,6 +538,7 @@ ohos_unittest("init_fshvb_unittest") {
   configs = []
 
   external_deps = [
+    "cJSON:cjson",
     "c_utils:utils",
     "googletest:gtest",
     "hilog:libhilog",