diff --git a/irteus/irtmodel.l b/irteus/irtmodel.l
index 395b5fd55..45cf63d7a 100644
--- a/irteus/irtmodel.l
+++ b/irteus/irtmodel.l
@@ -747,7 +747,10 @@
      (send (send j :child-link) :add-parent-link (send j :parent-link))
      (send (send j :parent-link) :add-child-links (send j :child-link))
      )
-   (send self :update-descendants))
+   (send self :update-descendants)
+   ;; Make default collision shape by pqp
+   (dolist (l (send self :links)) (send l :make-pqpmodel))
+   )
   (:links (&rest args) "Returns links, or args is passed to links" (user::forward-message-to-all links args))
   (:joint-list (&rest args) "Returns joint list, or args is passed to joints" (user::forward-message-to-all joint-list args))
   (:link (name) "Return a link with given name." (find name links :test #'equal :key #'(lambda (x) (send x :name))))
@@ -2104,6 +2107,7 @@
                   (union-link-list)
 		  (centroid-thre 1.0) (target-centroid-pos) (centroid-offset-func) (cog-translation-axis :z)
 		  (dump-command t) (periodic-time 0.5) ;; [s]
+                  (check-collision)
 		  &allow-other-keys)
    "Move move-target to target-coords."
    ;; target-coords, move-target, rotation-axis, translation-axis, link-list
@@ -2119,7 +2123,7 @@
 	  ;;
           (success t) 
 	  (old-analysis-level (send-all union-link-list :analysis-level))
-          command-directory command-filename command-id ik-args)       
+          command-directory command-filename command-id ik-args collision-status)       
      (send-all union-link-list :analysis-level :coords)
      ;; argument check
      (when (or (null link-list) (null move-target))
@@ -2230,8 +2234,9 @@
        (unix::rename (format nil "~A/~A.l" command-directory command-id ) (setq command-filename (format nil "~A/~A-~A.l" command-directory command-id (if (or success (not revert-if-fail)) "success" "failure")))))
      ;; reset weight
      (send self :reset-joint-angle-limit-weight-old union-link-list)
+     (if check-collision (setq collision-status (send self :self-collision-check)))
      ;; check solved or not
-     (if (or success (not revert-if-fail))
+     (if (and (or success (not revert-if-fail)) (not collision-status))
          (send self :angle-vector)
        (progn
 	 (when warnp
@@ -2245,6 +2250,7 @@
            (warn ";;  coords : ~a~%" 
                  (send (let ((p self)) (while (send p :parent) (setq p (send p :parent))) p) :worldcoords))
 	   (warn ";;  angles : ~a~%" av0)
+	   (if check-collision (warn ";;  collision : ~a~%" collision-status))
 	   (warn ";;    args : ~a~%" (append (list target-coords) args))
 	   (when dump-command
 	     (let (i print-args command-init command-setup command-args)
diff --git a/irteus/test/test-irt-motion.l b/irteus/test/test-irt-motion.l
index d732408af..092459ba3 100644
--- a/irteus/test/test-irt-motion.l
+++ b/irteus/test/test-irt-motion.l
@@ -674,6 +674,29 @@
         (every #'identity check-results)
         ))))
 
+;; test for collision check
+(defun test-self-collision-check-IK
+  ()
+  (defmethod sample-robot
+    (:collision-check-pairs
+     (&key ((:links ls) (list (car (send self :links))
+                              (elt (send self :rarm :links) 2)
+                              (elt (send self :rarm :links) 3))))
+     (send-super :collision-check-pairs :links ls)))
+  (labels ((test-ik
+            (check-collision)
+            (send *sample-robot* :reset-pose)
+            (send *sample-robot* :fix-leg-to-coords (make-coords))
+            (send *sample-robot* :rarm :move-end-pos #f(50 300 0) :world :rotation-axis nil :check-collision check-collision :warnp nil)))
+    (prog1
+        (and (test-ik nil) (not (test-ik t)))
+      (defmethod sample-robot
+        (:collision-check-pairs
+         (&key ((:links ls) (cons (car links) (all-child-links (car links)))))
+         (send-super :collision-check-pairs :links ls)))
+      )
+    ))
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; unit tests
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -736,5 +759,9 @@
   (assert
    (test-all-for-sample-robot :static-p t :fix-pos #f(100 200 300))))
 
+(deftest test-self-collision-check-IK-test
+  (assert
+   (test-self-collision-check-IK)))
+
 (run-all-tests)
 (exit 0)