diff --git a/module/program/model.php b/module/program/model.php
index 84eef5815d..aacbebdc4e 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -721,32 +721,6 @@ class programModel extends model
             ->remove('delta,future,contactListMenu')
             ->get();
 
-        if($program->parent)
-        {
-            $parentProgram = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($program->parent)->fetch();
-            if($parentProgram)
-            {
-                /* Child program begin cannot less than parent. */
-                if(!empty($program->name) and $program->begin < $parentProgram->begin) dao::$errors['begin'] = sprintf($this->lang->program->beginLetterParent, $parentProgram->begin);
-
-                /* When parent set end then child program end cannot greater than parent. */
-                if(!empty($program->name) and$parentProgram->end != '0000-00-00' and $program->end > $parentProgram->end) dao::$errors['end'] = sprintf($this->lang->program->endGreaterParent, $parentProgram->end);
-
-                /* When parent set end then child program cannot set longTime. */
-                if(!empty($program->name) and empty($program->end) and $this->post->delta == 999 and $parentProgram->end != '0000-00-00') dao::$errors['end'] = sprintf($this->lang->program->endGreaterParent, $parentProgram->end);
-
-                /* The budget of a child program cannot beyond the remaining budget of the parent program. */
-                $program->budgetUnit = $parentProgram->budgetUnit;
-                if(isset($program->budget))
-                {
-                    $availableBudget = $this->getBudgetLeft($parentProgram);
-                    if($program->budget > $availableBudget) dao::$errors['budget'] = $this->lang->program->beyondParentBudget;
-                }
-
-                if(dao::isError()) return false;
-            }
-        }
-
         /* Redefines the language entries for the fields in the project table. */
         foreach(explode(',', $this->config->program->create->requiredFields) as $field)
         {
@@ -817,17 +791,6 @@ class programModel extends model
         $program  = $this->loadModel('file')->processImgURL($program, $this->config->program->editor->edit['id'], $this->post->uid);
         $children = $this->getChildren($programID);
 
-        if($children > 0)
-        {
-            $minChildBegin = $this->dao->select('type, begin as minBegin')->from(TABLE_PROGRAM)->where('id')->ne($programID)->andWhere('deleted')->eq(0)->andWhere('path')->like("%,{$programID},%")->orderBy('begin_asc')->fetch();
-            $maxChildEnd   = $this->dao->select('type, end as maxEnd')->from(TABLE_PROGRAM)->where('id')->ne($programID)->andWhere('deleted')->eq(0)->andWhere('path')->like("%,{$programID},%")->andWhere('end')->ne('0000-00-00')->orderBy('end_desc')->fetch();
-
-            $minChildType = ($minChildBegin->type == 'project') ? $this->lang->project->common : $this->lang->program->childProgram;
-            $maxChildType = ($maxChildEnd->type   == 'project') ? $this->lang->project->common : $this->lang->program->childProgram;
-            if($minChildBegin and $program->begin > $minChildBegin->minBegin) dao::$errors['begin'] = sprintf($this->lang->program->beginGreateChild, $minChildType, $minChildBegin->minBegin);
-            if($maxChildEnd   and $program->end   < $maxChildEnd->maxEnd and $this->post->delta != 999) dao::$errors['end'] = sprintf($this->lang->program->endLetterChild, $maxChildType, $maxChildEnd->maxEnd);
-            if(dao::isError()) return false;
-        }
 
         if($program->parent)
         {
@@ -836,22 +799,6 @@ class programModel extends model
                 ->where('root')->eq($programID)
                 ->andwhere('type')->eq('line')
                 ->exec();
-
-            $parentProgram = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($program->parent)->fetch();
-            if($parentProgram)
-            {
-                if(!empty($program->name) and $program->begin < $parentProgram->begin) dao::$errors['begin'] = sprintf($this->lang->program->beginLetterParent, $parentProgram->begin);
-                if(!empty($program->name) and $parentProgram->end != '0000-00-00' and $program->end > $parentProgram->end) dao::$errors['end'] = sprintf($this->lang->program->endGreaterParent, $parentProgram->end);
-                if(!empty($program->name) and empty($program->end) and $this->post->delta == 999 and $parentProgram->end != '0000-00-00') dao::$errors['end'] = sprintf($this->lang->program->endGreaterParent, $parentProgram->end);
-            }
-
-            /* The budget of a child program cannot beyond the remaining budget of the parent program. */
-            $program->budgetUnit = $parentProgram->budgetUnit;
-            if($program->budget != 0)
-            {
-                $availableBudget = $this->getBudgetLeft($parentProgram);
-                if($program->budget > $availableBudget + $oldProgram->budget) dao::$errors['budget'] = $this->lang->program->beyondParentBudget;
-            }
         }
         if(dao::isError()) return false;
 
diff --git a/module/project/model.php b/module/project/model.php
index fff3a0fe4a..42c99b0993 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -1106,26 +1106,6 @@ class projectModel extends model
         $program = new stdClass();
         if($project->parent)
         {
-            $program = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($project->parent)->fetch();
-            if($program)
-            {
-                /* Child project begin cannot less than parent. */
-                if(!empty($project->name) and $project->begin < $program->begin) dao::$errors['begin'] = sprintf($this->lang->project->beginGreateChild, $program->begin);
-
-                /* When parent set end then child project end cannot greater than parent. */
-                if(!empty($project->name) and $program->end != '0000-00-00' and $project->end > $program->end) dao::$errors['end'] = sprintf($this->lang->project->endLetterChild, $program->end);
-
-                if(dao::isError()) return false;
-            }
-
-            /* The budget of a child project cannot beyond the remaining budget of the parent program. */
-            $project->budgetUnit = $program->budgetUnit;
-            if(isset($project->budget) and $program->budget != 0)
-            {
-                $availableBudget = $this->loadModel('program')->getBudgetLeft($program);
-                if($availableBudget > 0 and $project->budget > $availableBudget) dao::$errors['budget'] = $this->lang->program->beyondParentBudget;
-            }
-
             /* Judge products not empty. */
             if(empty($linkedProductsCount) and !isset($_POST['newProduct']))
             {
@@ -1369,30 +1349,6 @@ class projectModel extends model
             ->remove('products,branch,plans,delta,future,contactListMenu,teamMembers')
             ->get();
 
-        if($project->parent)
-        {
-            $program = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($project->parent)->fetch();
-
-            if($program)
-            {
-                /* Child project begin cannot less than parent. */
-                if(!empty($project->name) and $project->begin < $program->begin) dao::$errors['begin'] = sprintf($this->lang->project->beginGreateChild, $program->begin);
-
-                /* When parent set end then child project end cannot greater than parent. */
-                if(!empty($project->name) and $program->end != '0000-00-00' and $project->end > $program->end) dao::$errors['end'] = sprintf($this->lang->project->endLetterChild, $program->end);
-
-                if(dao::isError()) return false;
-            }
-
-            /* The budget of a child project cannot beyond the remaining budget of the parent project. */
-            $project->budgetUnit = $program->budgetUnit;
-            if($project->budget != 0 and $program->budget != 0)
-            {
-                $availableBudget = $this->loadModel('program')->getBudgetLeft($program);
-                if($project->budget > $availableBudget + $oldProject->budget) dao::$errors['budget'] = $this->lang->program->beyondParentBudget;
-            }
-        }
-
         $executionsCount = $this->dao->select('COUNT(*) as count')->from(TABLE_PROJECT)
             ->where('project')->eq($project->id)
             ->andWhere('deleted')->eq('0')
@@ -1553,25 +1509,6 @@ class projectModel extends model
             $projects[$projectID]->lastEditedDate = helper::now();
 
             if(isset($data->codes)) $projects[$projectID]->code = $projectCode;
-            if($projects[$projectID]->parent)
-            {
-                $parentProject = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($projects[$projectID]->parent)->fetch();
-
-                if($parentProject)
-                {
-                    /* Child project begin cannot less than parent. */
-                    if(!empty($projects[$projectID]->name) and $projects[$projectID]->begin < $parentProject->begin)
-                    {
-                        dao::$errors[] = "ID {$projects[$projectID]->id}" . sprintf($this->lang->project->beginGreateChild, $parentProject->begin) . "\n";
-                    }
-
-                    /* When parent set end then child project end cannot greater than parent. */
-                    if(!empty($projects[$projectID]->name) and $parentProject->end != '0000-00-00' and $projects[$projectID]->end > $parentProject->end)
-                    {
-                        dao::$errors[] = "ID {$projects[$projectID]->id}" . sprintf($this->lang->project->endLetterChild, $parentProject->end) . "\n";
-                    }
-                }
-            }
 
             foreach($extendFields as $extendField)
             {