diff --git a/node_modules/api.js b/node_modules/api.js
index 15f86bfc..ab89eed4 100644
--- a/node_modules/api.js
+++ b/node_modules/api.js
@@ -173,7 +173,7 @@ var Api = {
 				return callback && callback(false);
 			}
 			var ret = response.body;
-			console.log(ret);
+			// console.log(ret);
 			if(Common.isOk(ret)) {
 				callback && callback(ret);
 			} else {
diff --git a/node_modules/note.js b/node_modules/note.js
index b9a77509..ad623cc4 100644
--- a/node_modules/note.js
+++ b/node_modules/note.js
@@ -722,9 +722,9 @@ var Note = {
 			if(doc.length > 1) {
 				console.error(doc.length + '. ..');
 			}
-			console.log('note length: ' + doc.length + '. ..');
+			// console.log('note length: ' + doc.length + '. ..');
 			if(err || !doc || !doc.length) {
-				log('getNoteByServerNoteId 不存在' + noteId);
+				// log('getNoteByServerNoteId 不存在' + noteId);
 				callback && callback(false);
 			} else {
 				doc = doc[0];
@@ -736,7 +736,7 @@ var Note = {
 		var me = this;
 		db.notes.findOne({ServerNoteId: noteId}, function(err, doc) {
 			if(err || !doc) {
-				log('getNoteIdByServerNoteId 不存在' + noteId);
+				// log('getNoteIdByServerNoteId 不存在' + noteId);
 				callback && callback(false);
 			} else {
 				callback && callback(doc.NoteId);
@@ -1767,7 +1767,7 @@ var Note = {
 	updateNoteToDeleteTag: function(title, callback) {
 		var updates = {}; // noteId => 
 		var userId = User.getCurActiveUserId();
-		console.log('updateNoteToDeleteTag--');
+		// console.log('updateNoteToDeleteTag--');
 		db.notes.find({UserId: userId, LocalIsDelete: false , Tags: {$in: [title]}}, function(err, notes) {
 			console.log(notes);
 			if(!err && notes && notes.length > 0) {
@@ -1791,8 +1791,8 @@ var Note = {
 					});
 				}
 			} else {
-				console.log('updateNoteToDeleteTag');
-				console.log(err);
+				// console.log('updateNoteToDeleteTag');
+				// console.log(err);
 				callback({});
 			}
 		});
diff --git a/node_modules/sync.js b/node_modules/sync.js
index b9d75a1d..9fe38179 100644
--- a/node_modules/sync.js
+++ b/node_modules/sync.js
@@ -12,7 +12,7 @@ var Note = require('note');
 var Web = require('web');
 
 function log(o) {
-	console.log(o);
+	// console.log(o);
 }
 
 // 同步服务
@@ -224,7 +224,7 @@ var Sync = {
 		}
 		Api.getSyncNotebooks(afterUsn, me._notebookMaxEntry, function(notebooks) {
 			console.log('syncNotebook')
-			console.log(notebooks);
+			// console.log(notebooks);
 			if(Common.isOk(notebooks)) {
 				me._totalSyncNotebookNum += notebooks.length;
 				// 证明可能还有要同步的
@@ -232,10 +232,19 @@ var Sync = {
 					me._syncNotebookToLocal(notebooks, callback);
 					var last = notebooks[notebooks.length-1];
 					me.syncNotebook(last.Usn, callback);
+
+					// 更新Usn
+					me.updateSyncUsn('NotebookUsn', last.Usn);
+
 				} else {
 					console.log('no more');
 					me._syncNotebookIsLastChunk = true;
 					me._syncNotebookToLocal(notebooks, callback);
+
+					if (notebooks.length) {
+						var last = notebooks[notebooks.length-1];
+						me.updateSyncUsn('NotebookUsn', last.Usn);
+					}
 				}
 			} else {
 				// 同步失败
@@ -386,26 +395,39 @@ var Sync = {
 		}
 
 		Api.getSyncNotes(afterUsn, me._noteMaxEntry, function(notes) {
-			console.log('syncNote---');
-			console.log(notes);
+			// console.log('syncNote---');
+			// console.log(notes);
 			if(Common.isOk(notes)) {
 				me._totalSyncNoteNum += notes.length;
 				// 证明可能还有要同步的
 				if(notes.length == me._noteMaxEntry) {
 					me._syncNoteToLocal(notes, callback);
 					var last = notes[notes.length-1];
-					me.syncNote(last.Usn, callback);
+
+					// 500ms延迟
+					setTimeout(function () {
+						me.syncNote(last.Usn, callback);
+					}, 500);
+
+					// 更新Usn
+					me.updateSyncUsn('NoteUsn', last.Usn);
+
 				} else {
 					log('no more');
 					me._syncNoteIsLastChunk = true;
 					me._syncNoteToLocal(notes, callback);
+
+					if (notes.length) {
+						var last = notes[notes.length-1];
+						me.updateSyncUsn('NoteUsn', last.Usn);
+					}
 				}
 			} else {
 				// 同步失败
 				me._syncInfo.note.ok = false;
 				me._syncInfo.note.msg = "cann't get all chunks";
-				console.log(notes);
-				console.log('eeeeeeeeeeeeeeeeeerrror')
+				console.error('eeeeeeeeeeeeeeeeeerrror')
+				console.error(notes);
 				callback && callback(false);
 			}
 		});
@@ -508,10 +530,18 @@ var Sync = {
 					me._syncTagToLocal(tags, callback);
 					var last = tags[tags.length-1];
 					me.syncTag(last.Usn, callback);
+
+					// 更新Usn
+					me.updateSyncUsn('TagUsn', last.Usn);
 				} else {
 					log('no more');
 					me._syncTagIsLastChunk = true;
 					me._syncTagToLocal(tags, callback);
+
+					if (tags.length) {
+						var last = tags[tags.length-1];
+						me.updateSyncUsn('TagUsn', last.Usn);
+					}
 				}
 			} else {
 				// 同步失败
@@ -534,40 +564,70 @@ var Sync = {
 		});
 	},
 
+	// 为了避免全都重新来过, 这里保存每次
+	updateSyncUsn: function (type, usn) {
+		console.error('-------------------------------------------------');
+		console.log(type + ' = ' + usn);
+		User.updateEachSyncState(type, usn, function() {
+		});
+	},
+
 	// 全量同步
 	fullSync: function(callback) {
 		var me = this;
 		me._stop = false;
 		me._initSyncInfo();
 
-		// Web.syncNotebookFinish();
-		// 同步笔记本
-		me.syncNotebook(-1, function(ok) {
-			if(ok) {
-				// Web.syncNoteFinish();
-				// console.log('------------------')
-				// 同步笔记
-				me.syncNote(-1, function(ok) {
-					if(ok) {
-						// Web.syncTagFinish();
-						// 同步标签
-						me.syncTag(-1, function() { 
-							// 更新上次同步时间
-							me.updateLastSyncState(function() {
-								// send changes
-								// me.sendChanges();
-								callback && callback(me._syncInfo, true);
-							});
-						});
-					} else {
-						console.error('syncNote error.... 跳过tag');
-						callback && callback(me._syncInfo, false);
-					}
-				});
-			} else {
-				console.error('syncNotebook error.... 跳过note,tag');
-				callback && callback(me._syncInfo, false);
+		User.getAllLastSyncState(function(lastUsn, notebookUsn, noteUsn, tagUsn) {
+			// 不可能会有lastUsn吧
+			if (lastUsn && lastUsn > 0) {
+				notebookUsn = -1;
+				noteUsn = -1;
+				tagUsn = -1;
 			}
+
+			if (!notebookUsn) {
+				notebookUsn = -1;
+			}
+			if (!noteUsn) {
+				noteUsn = -1;
+			}
+			if (!tagUsn) {
+				tagUsn = -1;
+			}
+
+			// console.log('fullSync------ ' + notebookUsn + ' ' + noteUsn + ' ' + tagUsn);
+
+			// Web.syncNotebookFinish();
+			// 同步笔记本
+			me.syncNotebook(notebookUsn, function(ok) {
+				if(ok) {
+					// Web.syncNoteFinish();
+					// console.log('------------------')
+					// 同步笔记
+					me.syncNote(noteUsn, function(ok) {
+						if(ok) {
+							// Web.syncTagFinish();
+							// 同步标签
+							me.syncTag(tagUsn, function() { 
+								// 更新上次同步时间
+								me.updateLastSyncState(function() {
+									// send changes
+									// me.sendChanges();
+									callback && callback(me._syncInfo, true);
+								});
+							});
+						} else {
+							console.error('syncNote error.... 跳过tag');
+							callback && callback(me._syncInfo, false);
+						}
+					});
+				} else {
+					console.error('syncNotebook error.... 跳过note,tag');
+					callback && callback(me._syncInfo, false);
+				}
+			});
+
 		});
 	},
 
@@ -577,9 +637,9 @@ var Sync = {
 	fixConflicts: function(callback) {
 		var me = this;
 		var afterInfo = me._syncInfo;
-		log('处理冲突....');
-		log(me._syncInfo);
-		log(me._syncInfo.tag);
+		// log('处理冲突....');
+		// log(me._syncInfo);
+		// log(me._syncInfo.tag);
 		var tag = me._syncInfo.tag;
 
 		// 如果是incSync, 则要前端处理
diff --git a/node_modules/tag.js b/node_modules/tag.js
index 59d178c7..0a6b8ed8 100644
--- a/node_modules/tag.js
+++ b/node_modules/tag.js
@@ -72,7 +72,7 @@ var Tag = {
 		});
 		// 
 		var Note = require('./note');
-		console.log(Note);
+		// console.log(Note);
 		Note.updateNoteToDeleteTag(title, function(updates) {
 			callback && callback(updates);
 		});
diff --git a/node_modules/user.js b/node_modules/user.js
index 03af248c..b8c79a7b 100644
--- a/node_modules/user.js
+++ b/node_modules/user.js
@@ -379,7 +379,7 @@ User = {
 	fullSyncForce: function(callback) {
 		var me = this;
 		var userId = me.getCurActiveUserId();
-		db.users.update({UserId: userId}, {$set: {LastSyncUsn: -1}}, function() {
+		db.users.update({UserId: userId}, {$set: {LastSyncUsn: -1, NotebookUsn: -1, NoteUsn: -1, TagUsn: -1}}, function() {
 			// 删除本地账户所有数据
 			me.deleteUserAllData(userId, function () {
 				callback && callback();
@@ -396,10 +396,11 @@ User = {
 		}
 		Api.getLastSyncState(function(state) {
 			if(state) {
-				// console.error('--updateLastSyncState---')
-				// console.log(state);
 				me.LastSyncUsn = state.LastSyncUsn;
 				me.LastSyncTime = state.LastSyncTime;
+				me.NotebookUsn = -1;
+				me.NoteUsn = -1;
+				me.TagUsn = -1;
 				db.users.update({UserId: me.getCurActiveUserId()}, {$set: state});
 			}
 			callback();
@@ -414,6 +415,17 @@ User = {
 		var me = this;
 		return me.LastSyncUsn;
 	},
+
+	getAllLastSyncState: function (callback) {
+		var me = this;
+		me.getCurUser(function (user) {
+			if (!user) {
+				return callback(false);
+			}
+			callback(user.LastSyncUsn, user.NotebookUsn, user.NoteUsn, user.TagUsn);
+		});
+	},
+
 	// 更新 send changes要用
 	updateLastSyncUsn: function(usn) {
 		var me = this;
@@ -421,6 +433,14 @@ User = {
 		db.users.update({UserId: me.getCurActiveUserId()}, {$set: {LastSyncUsn: usn}});
 	},
 
+	// 更新每一个类型的USN, 仅在全量同步时有用
+	updateEachSyncState: function (type, usn, callback) {
+		var me = this;
+		var updates = {};
+		updates[type] = usn;
+		db.users.update({UserId: me.getCurActiveUserId()}, {$set: updates});
+	},
+
 	// 全局配置
 	getG: function(callback) {
 		var me = this;