diff --git a/frontend/src/components/AddByRecipeDialog.tsx b/frontend/src/components/AddByRecipeDialog.tsx
index fcce67d..35ee033 100644
--- a/frontend/src/components/AddByRecipeDialog.tsx
+++ b/frontend/src/components/AddByRecipeDialog.tsx
@@ -1,11 +1,19 @@
 import React, { useEffect, useState } from 'react';
 import {
-    Dialog,
-    DialogTitle,
-    DialogContent,
-    DialogActions,
-    Button,
-    Box,
+  Dialog,
+  DialogTitle,
+  DialogContent,
+  DialogActions,
+  Button,
+  Box,
+  List,
+  ListItem,
+  ListItemText,
+  ListItemSecondaryAction,
+  Typography,
+  TextField,
+  FormControlLabel,
+  Checkbox,
 } from '@mui/material';
 
 import { toBuyApi } from '../services/api';
@@ -13,112 +21,138 @@ import { recipeApi } from '../services/api';
 
 import CloseIcon from '@mui/icons-material/Close';
 import { RecipeDetailWithId, StuffNameAndAmount } from '../types/types';
+import { GENERAL_ERRORS } from '../constants/errorMessages';
+import { useNavigate } from 'react-router-dom';
+import { useMessage } from './MessageContext';
 
-const AddByRecipeDialog =  ({
-    openDialog,
-    setOpenDialog,
-    recipeId,
-    numOfPeople,
-    setNumOfPeaple,
-    checked,
-    setChecked
+const AddByRecipeDialog = ({
+  openDialog,
+  setOpenDialog,
+  recipeId,
+  numOfPeople,
+  setNumOfPeaple,
+  checked,
+  setChecked
 }: {
-    openDialog: boolean,
-    setOpenDialog: (open: boolean) => void,
-    recipeId: number,
-    numOfPeople: number,
-    setNumOfPeaple: (num: number) => void,
-    checked: boolean,
-    setChecked: (checked: boolean) => void
+  openDialog: boolean,
+  setOpenDialog: (open: boolean) => void,
+  recipeId: number,
+  numOfPeople: number,
+  setNumOfPeaple: (num: number) => void,
+  checked: boolean,
+  setChecked: (checked: boolean) => void
 }) => {
-    const [recipe, setRecipe] = useState<RecipeDetailWithId>();
-    
-    
-    useEffect(() => {
-        console.log("called AddByRecipeDialog useEffect recipeId: ", recipeId);
-        if (recipeId) {
-            const fetchRecipe = async () => {
-                console.log("Fetching recipe with ID:", recipeId);
-                setRecipe(await recipeApi.getById(recipeId));
-            };
-            fetchRecipe();
-        }
-    }, [recipeId]);
+  const [recipe, setRecipe] = useState<RecipeDetailWithId>();
 
-    return (
-        recipe ? 
-        <Dialog open={openDialog} onClose={() => setOpenDialog(false)} disableScrollLock={true} PaperProps={{ sx: { minWidth: '300px', maxHeight: '80vh' } }}>
-            <DialogTitle sx={{ m: 0, p: 2, display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
 
-                買うものリストへ追加
-                <CloseIcon
-                    onClick={() => setOpenDialog(false)}
-                    sx={{
-                        cursor: 'pointer',
-                        color: (theme) => theme.palette.grey[500],
-                    }}
-                />
-            </DialogTitle>
-            <DialogContent dividers sx={{ padding: 2 }}>
-                <div>
-                    <strong>レシピ名:</strong> {recipe.recipeName}
-                </div>
-                <div>
-                    ({recipe.maxServings}人分在庫あり)
-                </div>
-                <div>
-                    <strong>材料（1人前）:</strong>
-                    <ul>
-                        {recipe.stuffAndAmountArray.map((item, index) => (
-                            <li key={index}>
-                                {item.stuffName} - {item.amount}個
-                            </li>
-                        ))}
-                    </ul>
-                </div> 
-                
-                {/* 在庫との差分を取るかのチェックボックス */}
-                <div>
-                    <label>
-                        <input
-                            type="checkbox"
-                            checked={checked}
-                            onChange={(e) => setChecked(e.target.checked)}
-                        />
-                        在庫との差分を取る
-                    </label>
-                </div>
+  useEffect(() => {
+    console.log("called AddByRecipeDialog useEffect recipeId: ", recipeId);
+    if (recipeId) {
+      const fetchRecipe = async () => {
+        console.log("Fetching recipe with ID:", recipeId);
+        setRecipe(await recipeApi.getById(recipeId));
+      };
+      fetchRecipe();
+    }
+  }, [recipeId]);
 
-                {/* レシピを追加する人数分を入力 */}
-                <div>
-                    <strong>人数:</strong>
-                    <input
-                        type="number"
-                        min="1"
-                        defaultValue={1}
-                        onChange={(e) => {
-                            setNumOfPeaple(parseInt(e.target.value, 10));
-                        }}
-                    />
-                </div>
+  const navigate = useNavigate();
 
-                {/* 買うものリストに追加するボタン */}
-                <Box sx={{ mt: 2 }}>
-                    <Button
-                        variant="contained"
-                        color="primary"
-                        onClick={() => {
-                                    toBuyApi.addByRecipe(recipe.recipeId, numOfPeople, checked);
-                                    setOpenDialog(false);
-                        }}
-                    >
-                    </Button>
-                </Box>
-            </DialogContent>
+  //  エラーメッセージ表示
+  const { showErrorMessage, showSuccessMessage, showInfoMessage } = useMessage();
 
-        </Dialog>
-        : <></>
-    );
+  return (
+    recipe ?
+      <Dialog open={openDialog} onClose={() => setOpenDialog(false)} disableScrollLock={true} PaperProps={{ sx: { minWidth: '80vw', maxHeight: '80vh' } }}>
+        <DialogTitle sx={{ m: 0, p: 2, display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+
+          買うものリストへ追加
+          <CloseIcon
+            onClick={() => setOpenDialog(false)}
+            sx={{
+              cursor: 'pointer',
+              color: (theme) => theme.palette.grey[500],
+            }}
+          />
+        </DialogTitle>
+        <DialogContent dividers sx={{ padding: 2 }}>
+          <Typography variant="h3">
+            {recipe.recipeName}
+          </Typography>
+          <Typography>
+            ({recipe.maxServings}人分在庫あり)
+          </Typography>
+          <div>
+            <strong>材料（1人前）:</strong>
+            <List>
+              {recipe.stuffAndAmountArray.map((item, index) => (
+                <ListItem key={index} sx={{
+                  bgcolor: 'background.paper',
+                  mb: 1,
+                  borderRadius: 1,
+                  boxShadow: 1,
+                }}>
+                  <ListItemText primary={item.stuffName} />
+                  <ListItemSecondaryAction>
+                    <Typography variant="body1" component="span" sx={{ marginRight: '1em' }}>
+                      {`× ${item.amount}`}
+                    </Typography>
+                  </ListItemSecondaryAction>
+                </ListItem>
+              ))}
+            </List>
+          </div>
+          <div>
+            {/* 人数入力フィールド */}
+            <TextField
+              type="number"
+              margin="dense"
+              label="何人前"
+              fullWidth
+              // min={1}
+              defaultValue={1}
+              value={numOfPeople}
+              onChange={(e) => {
+                setNumOfPeaple(parseInt(e.target.value, 10));
+              }}
+              sx={{ minWidth: "8px", width: "100%" }}
+              inputProps={{ inputMode: "numeric", pattern: "[0-9]*" }} // ここで整数のみ許可
+
+            />
+          </div>
+          <FormControlLabel
+            control={<Checkbox checked={checked} onChange={(e) => setChecked(e.target.checked)} />}
+            label={<Typography>足りない食材のみ登録</Typography>}
+          />
+
+          {/* 買うものリストに追加するボタン */}
+          <Box sx={{ mt: 2, textAlign: 'right' }}>
+            <Button
+              variant="contained"
+              color="primary"
+              onClick={async () => {
+                if (!numOfPeople || isNaN(numOfPeople)) {
+                  showErrorMessage('人数が正しく入力されていません。');
+                  return;
+                }
+                const finalAddResult = await toBuyApi.addByRecipe(recipe.recipeId, numOfPeople, checked);
+                setOpenDialog(false);
+                if (finalAddResult.data.length === 0) {
+                  showInfoMessage('必要な食材が在庫にあったのでリストには追加されませんでした！');
+                } else {
+                  showSuccessMessage('レシピが保存されて買うものリストに追加されました！');
+                }
+                navigate('/tasks');
+              }}
+            >
+              追加
+            </Button>
+          </Box>
+        </DialogContent>
+
+      </Dialog>
+      : <></>
+  );
 }
 
 export default AddByRecipeDialog;
\ No newline at end of file
diff --git a/frontend/src/pages/AddRecipe.tsx b/frontend/src/pages/AddRecipe.tsx
index c1ca170..906bf5c 100644
--- a/frontend/src/pages/AddRecipe.tsx
+++ b/frontend/src/pages/AddRecipe.tsx
@@ -283,9 +283,9 @@ const AddRecipe: React.FC = () => {
           ))}</List>)}
 
         <div style={{ position: "fixed", left: "80%", transform: 'translateX(-50%)', bottom: "10%" }}>
-          <Box sx={{ textAlign: 'center' }}>
+          {/* <Box sx={{ textAlign: 'center' }}>
             <Typography variant="caption">材料を追加</Typography>
-          </Box>
+          </Box> */}
           <Fab color="primary" onClick={() => setOpenAddDialog(true)}>
             <AddIcon sx={{ fontSize: "1.5rem" }} />
           </Fab>
diff --git a/frontend/src/pages/RecipeList.tsx b/frontend/src/pages/RecipeList.tsx
index bd9e225..a44bdf2 100644
--- a/frontend/src/pages/RecipeList.tsx
+++ b/frontend/src/pages/RecipeList.tsx
@@ -155,6 +155,16 @@ const RecipeList: React.FC = () => {
           checked = {checked} setChecked={setChecked}
         />
       }
+
+      {/* 追加ボタン - 画面下部に固定表示 */}
+      <Box className="plusButtonWrapper">
+        <Fab color="primary" onClick={() => navigate('/addRecipe/')} className="plusButton">
+          <AddIcon />
+        </Fab>
+        {/* <Typography className="plusButtonLabel">
+          レシピの追加
+        </Typography> */}
+      </Box>
     </>
   );
 };