diff --git a/source/my_device.cc b/source/my_device.cc
new file mode 100644
index 0000000..b17af36
--- /dev/null
+++ b/source/my_device.cc
@@ -0,0 +1,35 @@
+#include "my_device.h"
+
+namespace Devices {
+std::vector<Get_device::Mount> Get_device::get_all_device() {
+    std::vector<Mount> vec_mount_devices;
+    std::vector<string> vec_str;
+    std::ifstream file("/proc/mounts");
+    if (file.is_open()) {
+        std::string line;
+        while (std::getline(file, line)) {
+            vec_str = Utils::split(line, ' ');
+            struct Mount mount;
+            mount.device = vec_str[0]; 
+            mount.destination = vec_str[1];
+            mount.fstype = vec_str[2]; 
+            mount.options = vec_str[3]; 
+            mount.dump = vec_str[4];
+            mount.pass = vec_str[5];
+            vec_mount_devices.push_back(mount);   
+        }
+    }
+    file.close();
+    return vec_mount_devices;
+
+}
+std::vector<Get_device::Mount> Get_device::get_part_devices(string find_device_name) {
+    std::vector<Mount> vec_mount_devices;
+    for (const auto device: this->get_all_device) {
+        if (device.device.find(find_device_name) != std::string::npos) {
+            vec_mount_devices.push_back(device);
+        }
+    }
+    return vec_mount_devices;
+}
+}
diff --git a/source/my_device.h b/source/my_device.h
new file mode 100644
index 0000000..d52fce1
--- /dev/null
+++ b/source/my_device.h
@@ -0,0 +1,27 @@
+#ifndef MY_DEVICE_H
+#define MY_DEVICE_H
+
+#include "project_lib.h"
+#include "util.h"
+
+
+namespace Devices {
+class Get_device
+{
+public:
+    struct Mount {
+        std::string device;
+        std::string destination;
+        std::string fstype;
+        std::string options;
+        std::string dump;
+        std::string pass;
+    };
+    
+public:
+    std::vector<Mount> get_all_device();
+    std::vector<Get_device::Mount> Get_device::get_part_devices(string find_device_name)
+};
+}
+#endif
+